Dual-medium humidifying device and leaf conditioning machine

Abstract

The utility model relates to tobacco processing equipment technical field discloses a kind of double medium humidification device and leaf beating and redrying leaf moistening machine, the double medium humidification device includes base, pipe clamp, supply assembly and injection assembly, base is used to install in leaf moistening cylinder, water pipe is worn in loose hole and can rotate relative to the pipe clamp, to adjust the injection angle of injection assembly, nozzle is rotatably connected with steam pipe by first threaded pipe, nozzle is rotatably connected with water pipe by second threaded pipe, steam is converged with soft water in nozzle and atomizes fully, then, through nozzle, tobacco in leaf moistening cylinder is humidified, rotate first threaded pipe and second threaded pipe, nozzle can rotate around its own axis, to adjust the injection angle of nozzle, according to the characteristics of different tobacco, multi-dimensional angle adjustment of left and right rotation and up and down swing can be carried out to nozzle, to carry out multi-angle double medium humidification to tobacco, satisfy the process requirement of tobacco, make the humidification effect of tobacco better.

Description

Technical Field

[0001] This utility model relates to the technical field of tobacco processing equipment, and in particular to a dual-medium humidification device and a leaf-beating, re-drying, and moistening machine. Background Technology

[0002] In the tobacco leaf re-drying process, the leaf moistening machine is a crucial step, as its effect on moistening the tobacco leaves directly impacts the quality of subsequent processing. In tobacco leaf re-drying production lines, leaf moistening machines generally employ a centralized moistening mode. While this achieves moistening to some extent, problems such as uneven moistening and limited media coverage exist in actual production.

[0003] Existing humidification devices are usually fixed in place, and the nozzles have a single spray angle, which means that the humidification medium cannot fully and evenly contact and penetrate the tobacco leaves. Some areas are too damp or too dry, which affects the stability of the subsequent leaf threshing and re-drying processes and the quality of the tobacco leaves. Utility Model Content

[0004] The purpose of this invention is to provide a dual-medium humidification device to solve the aforementioned problems of humidification devices in leaf-beating, re-drying, and moistening machines in related technologies.

[0005] To address the aforementioned problems in the existing technology, this utility model adopts the following technical solution:

[0006] A dual-medium humidification device, comprising:

[0007] A base for installation inside a leaf-lubricating tube;

[0008] A pipe clamp, which is mounted on the base, has a tightening hole;

[0009] A supply assembly, comprising a water pipe and a steam pipe, wherein the steam pipe and the water pipe are arranged side by side, and the water pipe passes through the tension hole and is rotatable relative to the pipe clamp.

[0010] The spray assembly includes a nozzle, a first threaded tube, and a second threaded tube. The nozzle is rotatably connected to the steam pipe via the first threaded tube, and the nozzle is rotatably connected to the water pipe via the second threaded tube.

[0011] As an optional technical solution, the pipe clamp includes a first connecting part, a second connecting part, and an adjusting part. The first connecting part and the second connecting part are interlocked to form the tightening hole. The first connecting part is disposed on the base. The first connecting part has a fixing hole. The second connecting part has a connecting hole. The adjusting part passes through the connecting hole and is connected to the fixing hole. The tightening hole can clamp or loosen the water pipe under the rotation of the adjusting part.

[0012] As an optional technical solution, the dual-medium humidification device also includes a connector. The base has an adjustment hole, the connector passes through the adjustment hole and is fixedly connected to the leaf-humidifying cylinder. The adjustment hole has an oblong structure, and the connector can slide along the length of the adjustment hole.

[0013] As an optional technical solution, there are multiple spraying components, which are spaced apart along the length of the water pipe.

[0014] As an optional technical solution, the dual-medium humidification device further includes a reinforcing pipe, the two ends of which are respectively connected to the water pipe and the steam pipe.

[0015] As an optional technical solution, the supply component further includes a water storage tank and a steam tank. The water storage tank is connected to the water pipe and is used to supply soft water to the water pipe. The steam tank is connected to the steam pipe and is used to supply steam to the steam pipe.

[0016] As an optional technical solution, the dual-medium humidification device also includes a booster and a pressure sensor. The booster is connected to the water storage tank and the steam tank, and the pressure sensor is electrically connected to the booster. The pressure sensor is used to detect the air pressure inside the humidification cylinder.

[0017] As an optional technical solution, the dual-medium humidification device further includes a heater and a temperature sensor. The heater is connected to the water storage tank and the steam tank and is used to heat the water storage tank and the steam tank. The temperature sensor is electrically connected to the heater and is used to detect the temperature of the tobacco leaves.

[0018] As an optional technical solution, the dual-medium humidification device further includes a heat insulation layer, which covers the steam pipe and the water pipe.

[0019] To achieve the above objectives, this utility model also provides a leaf-re-drying and moistening machine, including a moistening cylinder and the aforementioned dual-medium moistening device. The moistening cylinder includes an inlet and an outlet, and the number of dual-medium moistening devices is at least two, with the two dual-medium moistening devices respectively disposed at the inlet and the outlet.

[0020] The dual-medium humidification device and leaf-beating, re-drying and moistening machine provided by this utility model have at least the following beneficial effects:

[0021] This dual-media humidification device includes a base, a pipe clamp, a supply assembly, and a spray assembly. The base is installed inside the humidification cylinder, and the pipe clamp is installed on the base. The pipe clamp has a tightening hole through which a water pipe passes. When the water pipe is rotated by a certain external force, the tightening hole of the pipe clamp enlarges, allowing the water pipe to rotate within the hole. When no external force is applied to the water pipe, the tightening hole recovers and clamps itself under its own elastic force, fixing the water pipe relative to the pipe clamp. The spray assembly and steam pipe rotate simultaneously with the water pipe around the axis of the tightening hole, thereby adjusting the spray angle of the spray assembly. The nozzle is rotatably connected to the steam pipe via a first threaded pipe and to the water pipe via a second threaded pipe. After the steam and soft water are fully atomized and combined in the nozzle, the steam is sprayed onto the tobacco leaves in the humidification cylinder. Furthermore, rotating the first and second threaded pipes allows the nozzle to rotate around its own axis, thereby adjusting the spray angle. This dual-media humidification device can perform dual-media humidification of the tobacco leaves in the humidification cylinder, meeting the processing requirements of tobacco leaves. Based on the characteristics of different tobacco leaves, the nozzle can be adjusted in multiple dimensions, rotating left and right and swinging up and down, so as to spray the tobacco leaves from multiple angles, making the moistening effect of the tobacco leaves better and ensuring that the quality of the tobacco leaves meets the requirements.

[0022] This leaf threshing and re-drying machine includes a moistening cylinder and a dual-medium humidification device. The moistening cylinder has an inlet and an outlet, and there are at least two dual-medium humidification devices, one at the inlet and one at the outlet. The airflow direction is stable, meeting the threshing requirements and reducing leaf breakage. Furthermore, the nozzle angle can be adjusted according to the characteristics of different tobacco leaves, achieving multi-dimensional angle adjustment through left-right rotation and up-down oscillation, resulting in better humidification of the tobacco leaves. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the dual-medium humidification device in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A magnified view of a section at point I;

[0025] Figure 3 for Figure 1 Enlarged view of a section at point II;

[0026] Figure 4 This is a schematic diagram of the spray assembly in an embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional view of the spraying assembly in an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Base; 11. Adjustment hole;

[0030] 2. Pipe clamp; 21. First connecting part; 22. Second connecting part; 23. Tightening hole;

[0031] 3. Water pipes;

[0032] 4. Steam pipe;

[0033] 5. Injection assembly; 51. Nozzle; 52. First threaded tube; 53. Second threaded tube;

[0034] 6. Connectors;

[0035] 7. Reinforced pipe. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] like Figures 1 to 5 As shown, this embodiment provides a dual-medium humidification device, which includes a base 1, a pipe clamp 2, a supply assembly, and a spray assembly 5. The base 1 is installed inside a humidifying cylinder, and the pipe clamp 2 is installed on the base 1. The pipe clamp 2 has a tightening hole 23. The supply assembly includes a water pipe 3 and a steam pipe 4, which are arranged side-by-side. The water pipe 3 passes through the tightening hole 23 and is rotatable relative to the pipe clamp 2. The spray assembly 5 includes a nozzle 51, a first threaded pipe 52, and a second threaded pipe 53. The nozzle 51 is rotatably connected to the steam pipe 4 via the first threaded pipe 52, and the nozzle 51 is rotatably connected to the water pipe 3 via the second threaded pipe 53.

[0041] For example, during the processing of tobacco leaves, the humidifying cylinder of the leaf-re-drying and humidifying machine needs to establish a high-temperature and high-humidity environment to increase the moisture and temperature of the tobacco leaves, thereby meeting the quality requirements of the tobacco leaves. Therefore, dual-medium humidification devices are installed at both the inlet and outlet of the humidifying cylinder to achieve the effect of humidifying the tobacco leaves inside the humidifying cylinder.

[0042] One end of the base 1 is fixedly installed in the fixing cover inside the humidifying cylinder by welding, and the base 1 is close to the inlet and outlet of the humidifying cylinder. The pipe clamp 2 is fixedly connected to the other end of the base 1 and can tighten to fix the water pipe 3. The pipe clamp 2 has a certain degree of elasticity, and the diameter of its tightening hole 23 can increase or decrease under the action of external force. The water pipe 3 passes through the tightening hole 23 of the pipe clamp 2. When the water pipe 3 is rotated by a certain external force, the tightening hole 23 of the pipe clamp 2 increases. At this time, the diameter of the tightening hole 23 is slightly larger than the outer diameter of the water pipe 3, so that the water pipe 3 can rotate within the tightening hole 23. When there is no external force on the water pipe 3, the tightening hole 23 recovers and clamps and fixes itself under the action of its own elastic force, so that the water pipe 3 is fixed relative to the pipe clamp 2. Water pipe 3 is used to transport soft water. Steam pipe 4 is arranged parallel to water pipe 3 via jet assembly 5 and is used to transport steam. Jet assembly 5 and steam pipe 4 rotate around the axis of tension hole 23 with water pipe 3, thereby adjusting the jet angle of jet assembly 5.

[0043] Nozzle 51 is configured with two inlets and one outlet. One inlet of nozzle 51 is connected to steam pipe 4 via a first threaded pipe 52, allowing steam from steam pipe 4 to enter nozzle 51 through the first threaded pipe 52. The other inlet of nozzle 51 is connected to water pipe 3 via a second threaded pipe 53, allowing soft water from water pipe 3 to enter nozzle 51 through the second threaded pipe 53. On one hand, after the steam and soft water are fully atomized and combined in nozzle 51, they are used to moisten the tobacco leaves in the humidifying cylinder. On the other hand, rotating the first threaded pipe 52 and the second threaded pipe 53 allows nozzle 51 to rotate around its own axis, thereby adjusting the spray angle of nozzle 51.

[0044] The dual-medium humidification device can humidify tobacco leaves in the humidification cylinder using two media to meet the processing requirements of tobacco leaves. Furthermore, the nozzle 51 can be angled according to the characteristics of different tobacco leaves, achieving multi-dimensional angle adjustment by rotating left and right and swinging up and down. This allows for multi-angle spraying of the tobacco leaves, resulting in better humidification and ensuring that the quality of the tobacco leaves meets requirements.

[0045] Furthermore, referring to Figures 1-5 The pipe clamp 2 includes a first connecting part 21, a second connecting part 22, and an adjusting part. The first connecting part 21 and the second connecting part 22 are fastened together to form a tightening hole 23. The first connecting part 21 is disposed on the base 1 and has a fixing hole. The second connecting part 22 has a connecting hole. The adjusting part passes through the connecting hole and is connected to the fixing hole. The tightening hole 23 can clamp or loosen the water pipe 3 under the rotation of the adjusting part.

[0046] The adjustment mechanism is set as a tensioning bolt. When it is necessary to adjust the rotation angle of the water pipe 3, i.e., the spray angle of the nozzle 51, the tensioning bolt is rotated to increase the distance between the first connecting part 21 and the second connecting part 22. The diameter of the tensioning hole 23 is larger than the outer diameter of the water pipe 3. At this time, the water pipe 3 can rotate within the tensioning hole 23, thereby realizing the adjustment of the up-and-down swing angle of the nozzle 51. When the nozzle 51 needs to spray at a fixed angle, i.e., the water pipe 3 needs to be fixed, the tensioning bolt is rotated to decrease the distance between the first connecting part 21 and the second connecting part 22. The diameter of the tensioning hole 23 is equal to the outer diameter of the water pipe 3. At this time, the water pipe 3 is fixed relative to the tensioning hole 23, ensuring that the spray angle of the nozzle 51 remains unchanged, so as to perform a fixed-angle moistening process on the tobacco leaves.

[0047] Furthermore, referring to Figures 1-5 The dual-medium humidification device also includes a connector 6. The base 1 has an adjustment hole 11. The connector 6 passes through the adjustment hole 11 and is fixedly connected to the leaf humidifier. The adjustment hole 11 has an oblong hole structure, and the connector 6 can slide along the length of the adjustment hole 11.

[0048] The connector 6 is configured as an adjusting bolt, and the adjusting hole 11 is configured as a waist-shaped hole, with the symmetrical center line of the adjusting hole 11 collinear along the length extension direction of the base 1. Loosening the connector 6 allows the base 1 to be adjusted along the symmetrical center line of the adjusting hole 11, enabling the dual-medium humidification device to be height-adjusted relative to the moistening cylinder, thereby adjusting the distance between the nozzle 51 and the tobacco leaves to meet the humidification requirements of different tobacco leaves. Then, rotating the connector 6 causes it to pass through the adjusting hole 11 and abut against the base 1, fixing the base 1 relative to the moistening cylinder, thus achieving the humidification process where the nozzle 51 maintains a fixed distance from the tobacco leaves.

[0049] Preferably, there are multiple spraying components 5, which are spaced apart along the length of the water pipe 3. Multiple spraying components 5 are installed at the inlet and outlet of the moistening cylinder. These components perform a dual-media spraying and moistening process on the tobacco leaves, resulting in a large spray area and wide coverage, ensuring sufficient moistening of the tobacco leaves. Simultaneously, this avoids uneven moistening of the tobacco leaves due to concentrated moistening, which could affect the quality of the tobacco leaves.

[0050] Furthermore, referring to Figures 1-5 The dual-medium humidification device also includes a reinforcing pipe 7, the two ends of which are connected to the water pipe 3 and the steam pipe 4, respectively.

[0051] There are two reinforcing pipes 7, which are spaced apart along the length of the water pipe 3 and fixed between the water pipe 3 and the steam pipe 4 to prevent the spray assembly 5 from tilting during angle adjustment, thereby enhancing the rigidity of the spray assembly 5 and the entire device and extending its service life.

[0052] Furthermore, referring to Figures 1-5 The supply components also include a water storage tank and a steam tank. The water storage tank is connected to the water pipe 3 and is used to supply soft water to the water pipe 3. The steam tank is connected to the steam pipe 4 and is used to supply steam to the steam pipe 4.

[0053] A DN40 shut-off valve is installed at the hose to control the flow of the pipeline. The water storage tank stores soft water, and its output is connected to water pipe 3 via a hose. The steam tank stores steam, and its output is connected to steam pipe 4 via a hose. The water storage tank and steam tank supply water and steam to water pipe 3 and steam pipe 4 respectively, without interfering with each other. The steam is fully atomized and mixed with the soft water in nozzle 51, and then moistened into the tobacco leaves in the humidifying cylinder through nozzle 51.

[0054] Furthermore, referring to Figures 1-5 The dual-medium humidification device also includes a booster and a pressure sensor. The booster is connected to the water tank and the steam tank, and the pressure sensor is electrically connected to the booster. The pressure sensor is used to detect the air pressure inside the humidification cylinder.

[0055] The pressure sensor is electrically connected to the booster via a control circuit board. When the pressure sensor detects that the air pressure inside the humidifying cylinder is too low or too high (i.e., the air pressure does not meet the processing requirements), the pressure sensor sends a high-level signal to the control circuit board. The control circuit board then controls the booster to open. Under the action of the booster, the pressure of the soft water in the water tank and the steam in the steam tank can be increased or decreased, so that the air pressure of the atomized steam ejected from nozzle 51 reaches the required level, achieving automatic pressure balance control of the humidifying cylinder. When the pressure sensor detects that the air pressure inside the humidifying cylinder meets the processing requirements, the pressure sensor sends a low-level signal to the control circuit board. The control circuit board then controls the booster to close, and the booster no longer changes the pressure of the soft water in the water tank and the steam in the steam tank.

[0056] Furthermore, referring to Figures 1-5 The dual-medium humidification device also includes a heater and a temperature sensor. The heater is connected to the water tank and the steam tank and is used to heat the water tank and the steam tank. The temperature sensor is electrically connected to the heater and is used to detect the temperature of the tobacco leaves.

[0057] The temperature sensor is electrically connected to the heater via a control circuit board. When the temperature sensor detects that the tobacco temperature inside the humidifying cylinder is too low, it sends a high-level signal to the control circuit board. The control circuit board then turns on the heater, which heats the soft water in the water tank and the steam in the steam tank, raising the temperature of the atomized steam emitted from nozzle 51 to meet the temperature requirements of the tobacco leaves and achieve automatic control of the tobacco leaf moisture and temperature. When the temperature sensor detects that the tobacco temperature inside the humidifying cylinder meets the processing requirements, it sends a low-level signal to the control circuit board, which then turns off the heater, preventing it from heating the soft water in the water tank and the steam in the steam tank.

[0058] Furthermore, referring to Figures 1-5 The dual-medium humidification device also includes an insulation layer that covers the steam pipe 4 and the water pipe 3. The insulation layer is made of insulation cotton, which can keep the steam pipe 4 and the water pipe 3 warm, preventing the steam in the steam tank and the soft water in the water pipe 3 from losing temperature during transportation and affecting the humidification requirements of the tobacco leaves.

[0059] This embodiment also provides a leaf-re-drying and moistening machine, including a moistening cylinder and the dual-medium moistening device in the above scheme. The moistening cylinder includes an inlet and an outlet. There are at least two dual-medium moistening devices, which are respectively set at the inlet and the outlet.

[0060] The leaf-humidifying cylinder is 12 meters long and 3 meters in diameter. A dual-medium humidification device is installed at both the inlet and outlet. Specifically, four spray components 5 of the dual-medium humidification device are arranged at the inlet, 1.2 meters from the top of the cylinder, and five spray components 5 are arranged above the outlet. The spray angle of the corresponding nozzles 51 at the inlet and outlet is adjusted using a tracking method to reach the golden ratio point of the humidification cylinder, ensuring stable airflow, meeting leaf-beating requirements, and reducing leaf breakage. The large spray area avoids concentrated steam that could lead to leaf breakage, minimizing the chance of breakage and ensuring consistent quality. Furthermore, the nozzles 51 can be angled according to the characteristics of different tobacco leaves, allowing for multi-dimensional angle adjustments such as left-right rotation and up-down swing, resulting in better humidification of the tobacco leaves.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A dual-medium humidification device, characterized in that, include: Base (1), the base (1) is used to be installed inside the leaf-lubricating tube; Pipe clamp (2), the pipe clamp (2) is mounted on the base (1), the pipe clamp (2) has a tightening hole (23); The supply assembly includes a water pipe (3) and a steam pipe (4), the steam pipe (4) and the water pipe (3) are arranged side by side, the water pipe (3) passes through the tightening hole (23) and can rotate relative to the pipe clamp (2); The spray assembly (5) includes a nozzle (51), a first threaded pipe (52) and a second threaded pipe (53). The nozzle (51) is rotatably connected to the steam pipe (4) through the first threaded pipe (52), and the nozzle (51) is rotatably connected to the water pipe (3) through the second threaded pipe (53).

2. The dual-medium humidification device according to claim 1, characterized in that, The pipe clamp (2) includes a first connecting part (21), a second connecting part (22), and an adjusting part. The first connecting part (21) and the second connecting part (22) are fastened together to form the tightening hole (23). The first connecting part (21) is disposed on the base (1). The first connecting part (21) has a fixing hole, and the second connecting part (22) has a connecting hole. The adjusting part passes through the connecting hole and is connected to the fixing hole. The tightening hole (23) can clamp or loosen the water pipe (3) under the rotation of the adjusting part.

3. The dual-medium humidification device according to claim 1, characterized in that, The dual-medium humidification device also includes a connector (6). The base (1) has an adjustment hole (11). The connector (6) passes through the adjustment hole (11) and is fixedly connected to the leaf humidifier. The adjustment hole (11) has a waist-shaped hole structure. The connector (6) can slide along the length direction of the adjustment hole (11).

4. The dual-medium humidification device according to claim 1, characterized in that, There are multiple spray components (5), and multiple spray components (5) are arranged at intervals along the length direction of the water pipe (3).

5. The dual-medium humidification device according to claim 1, characterized in that, The dual-medium humidification device also includes a reinforcing pipe (7), the two ends of which are connected to the water pipe (3) and the steam pipe (4), respectively.

6. The dual-medium humidification device according to claim 1, characterized in that, The supply component also includes a water storage tank and a steam tank. The water storage tank is connected to the water pipe (3) and is used to supply soft water to the water pipe (3). The steam tank is connected to the steam pipe (4) and is used to supply steam to the steam pipe (4).

7. The dual-medium humidification device according to claim 6, characterized in that, The dual-medium humidification device also includes a booster and a pressure sensor. The booster is connected to the water storage tank and the steam tank. The pressure sensor is electrically connected to the booster and is used to detect the air pressure inside the humidification cylinder.

8. The dual-medium humidification device according to claim 6, characterized in that, The dual-medium humidification device also includes a heater and a temperature sensor. The heater is connected to the water tank and the steam tank and is used to heat the water tank and the steam tank. The temperature sensor is electrically connected to the heater and is used to detect the temperature of the tobacco leaves.

9. The dual-medium humidification device according to claim 1, characterized in that, The dual-medium humidification device also includes a heat insulation layer, which covers the steam pipe (4) and the water pipe (3).

10. A leaf-beating, re-drying, and moistening machine, characterized in that, The device includes a leaf-humidifying cylinder and a dual-medium humidification device as described in any one of claims 1-9. The leaf-humidifying cylinder includes an inlet and an outlet. The number of dual-medium humidification devices is at least two, and the two dual-medium humidification devices are respectively disposed at the inlet and the outlet.

Images