WO2021164366A1

WO2021164366A1 - Vertical humidifier having diameter-variable evaporator

Info

Publication number: WO2021164366A1
Application number: PCT/CN2020/132672
Authority: WO
Inventors: 皮体斌
Original assignee: 成都中邦智能科技有限责任公司
Priority date: 2020-02-20
Filing date: 2020-11-30
Publication date: 2021-08-26
Also published as: EP4109002B1; CN113432220B; EP4109002A4; CN111912069A; CN113418257A; CN113432220A; KR20220143914A; EP4109002A1; CN111089377A; CN113375250A; CN113432221A

Abstract

Disclosed in the present invention is a vertical humidifier having a diameter-variable evaporator which belongs to an evaporative humidifier. The humidifier comprises a housing; an evaporating water tank is provided in the housing; an evaporator is provided in the evaporating water tank; a fan is mounted below the evaporator; an air inlet end of the fan is communicated with an air inlet of the housing; a water storage tank is further mounted on the upper portion of the evaporating water tank; the evaporator surrounds the lower portion of the water storage tank, and the water storage tank is further communicated with the evaporating water tank by means of a water inlet; an air outlet is provided on the upper portion of the housing; the air outlet is communicated with an air outlet end of the fan; and the evaporator is provided in an airflow channel between the air outlet and the air outlet end of the fan. By mounting the fan on the lower portion of the evaporator, operating noise waves pass through the evaporator and are reduced, so that silence is implemented; the turbulence and mass transfer effects of airflow can be increased by the diameter-variable evaporator having a tight lower end and a loose upper end, so that the humidification amount is effectively increased; moreover, diameter-variable evaporator surrounds a vertical compact product structure, so that the size of the evaporator is smaller.

Description

Vertical humidifier with variable diameter evaporator

Technical field

The present invention relates to an evaporative humidifier. More specifically, the present invention mainly relates to a vertical humidifier with a variable diameter evaporator.

Background technique

The evaporative humidifier uses a fan to generate airflow. When the airflow passes through the evaporator, the water molecules attached to the evaporator are evaporated and discharged together with the airflow, thereby keeping the indoor air moist. Because the fan needs to be driven by a motor, and the fan is installed above the humidifier housing, the rotation of the fan creates a negative pressure in the housing to generate airflow, but the motor operation will also generate noise at the same time, which further raises the tightness of the humidifier housing. Higher requirements, and at the same time, the fan speed is limited due to noise considerations, which in turn limits the maximum humidification capacity of the humidifier. And most of the humidifiers of this kind of structure are the structure with the storage tank under the water tank. The airflow enters through the air inlet on the shell and then is discharged from the top through the air duct. Since the airflow must be in full contact with the evaporator, the air duct needs to be set to bend. The shape, which will hinder the airflow, will further cause the appearance of noise during use. At the same time, the water storage tank is placed under the fan, and the design of the curved air duct structure not only cannot control the overall volume of the humidifier product, but also affects the aesthetics of the product design Therefore, it is necessary to further research and improve the evaporative humidifier of this kind of structure.

Summary of the invention

One of the objectives of the present invention is to provide a vertical humidifier with a variable diameter evaporator in view of the above-mentioned shortcomings, in order to solve the problem that similar evaporative humidifiers in the prior art are prone to noise, low humidification efficiency, and insufficient structure. The compactness leads to technical problems such as larger product volume and insufficient aesthetics.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

The present invention provides a vertical humidifier with a variable-diameter evaporator. The humidifier includes an outer shell, and an evaporation tank is arranged inside the outer shell, and an evaporator is arranged in the evaporation tank. The evaporator is immersed in the evaporating water tank, a fan is installed below the evaporator, and the air inlet end of the fan is connected to the air inlet of the outer shell; a water storage tank is also installed on the upper part of the evaporating water tank, the water storage tank It is also connected to the evaporating water tank through a water inlet; an air outlet is provided on the upper part of the outer shell, and the air outlet is in communication with the air outlet end of the fan, and the evaporator is placed at the air outlet and the air outlet end of the fan In the airflow channel between the two, the airflow channel is located between the inner wall of the outer shell and the outer wall of the water storage tank.

Preferably, a further technical solution is: the longitudinal section of the water storage tank is T-shaped, the upper part of the water storage tank is larger than the lower part of the water storage tank, the upper part of the evaporator surrounds the lower part of the T-shaped water storage tank, and The lower part of the evaporator is immersed in the evaporation water tank.

A further technical solution is that: the evaporator is cylindrical and surrounds the lower part of the water storage tank, the lateral profile area of the upper part of the evaporator is larger than the lateral profile area of the lower part; the evaporator is composed of a fiber layer It is folded, and the folding density of the lower part of the evaporator is greater than the folding density of the upper part of the evaporator.

A further technical solution is: the inner side of the upper part of the evaporator is provided with a tapered surface, and the tapered surface coincides with the outer wall of the water storage tank; the outer side of the lower part of the evaporator is provided with an annular step surface, The upper part is engaged with the upper edge of the evaporation tank.

A further technical solution is that a valve is installed in the evaporating water tank, and the valve corresponds to the water inlet, and is used for controlling the amount of water entering the evaporating water tank from the water inlet by the valve.

A further technical solution is that a cover is provided on the top of the outer shell, the water storage tank is placed directly under the cover, and the air outlet is placed outside the edge of the cover.

A further technical solution is: the fan includes a fan blade and a motor, the fan blade is motively connected to the motor, the motor is placed above the fan blade, and the motor is placed in an upwardly protruding cavity in the middle of the evaporation tank Inside.

A further technical solution is that the water storage tank, the evaporator, the evaporating water tank and the fan are vertically installed in the outer casing in sequence, and the central axes of the water storage tank, the evaporator, the evaporating water tank and the fan are coincident with each other.

A further technical solution is that: an ultraviolet sterilization lamp is also installed inside the evaporation water tank.

A further technical solution is: a water heating device is installed at the lower part of the evaporation tank.

A further technical solution is that the air inlet is placed at the bottom of the outer shell, and an air heating device is installed on the bottom of the outer shell, and the air heating device is placed at the air inlet and the air outlet end of the fan. between.

A further technical solution is: a primary filter is installed on the air inlet.

Compared with the prior art, one of the beneficial effects of the present invention is that by installing the fan at the lower part of the evaporator, and adding an air inlet at the lower part of the outer casing, the noise generated by the fan motor during operation can pass through with the wind. In the process of passing through the evaporator, the evaporator is blocked and absorbed, thereby effectively reducing the noise during operation of the humidifier, so the humidification per unit time can be increased by increasing the fan speed;

By designing the air flow channel between the outer wall of the water storage tank and the outer shell, and encircling the evaporator at the lower part of the water storage tank, a longitudinal air flow channel is formed so that the air flow flows in a direction perpendicular to the horizontal plane, thereby shortening the length of the air flow channel , Reduce the obstruction caused by the airflow channel to the airflow, and the sound wave of the running noise can be effectively reduced and subtracted through the evaporator, thereby achieving mute; the tight lower end of the loose upper section of the variable diameter evaporator can also improve the turbulence and mass transfer effect of the airflow, thereby effectively improving The amount of humidification.

Through the vertical design, the volume of the humidifier is further reduced. On the basis of this compact structure, a large-capacity water storage tank can also be ensured, and the combination of the lower air inlet can also improve the overall aesthetics of the humidifier. At the same time, the present invention The provided vertical humidifier with a variable diameter evaporator has a simple structure, is suitable for industrial production, and is easy to popularize.

Description of the drawings

Fig. 1 is a schematic structural diagram for explaining an embodiment of the present invention;

Figure 2 is a longitudinal sectional view of Figure 1;

Figure 3 is a perspective view of Figure 2;

Figure 4 is an enlarged view of A in Figure 2;

5 is a schematic diagram for explaining the structure of an evaporator in another embodiment of the present invention;

Figure 6 is a cross-sectional view of Figure 5;

FIG. 7 is a schematic structural diagram for explaining another embodiment of the present invention;

In the figure, 1 is the outer shell, 2 is the evaporating water tank, 3 is the evaporator, 31 is the tapered surface, 32 is the annular step surface, 4 is the fan, 5 is the air inlet, 6 is the water storage tank, 7 is the air outlet, 8 Is the water inlet, 9 is the valve, 10 is the cover, 11 is the air flow channel, 12 is the water heating device, 13 is the motor, and 14 is the air heating device.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings.

Referring to Figures 1 and 2, an embodiment of the present invention is a vertical humidifier with a variable-diameter evaporator. The humidifier includes an outer casing 1, and an evaporation water tank 2 is provided inside the outer casing 1, and The evaporating water tank 2 is preferably designed in a ring shape to facilitate the placement of the evaporator 3 in the evaporating water tank 2. The function of the evaporator 3 is to adsorb the water in the evaporating water tank 2 to the evaporator 3 through the principle of capillary tube, and then in the air flow It is evaporated under the action; therefore, it is necessary to install a fan 4 below the aforementioned evaporator 3. The fan 4 can be placed on the bottom layer of the outer casing 1 as shown in Figs. 2 and 3, and the air inlet end of the fan 4 and the outer casing The air inlet 5 of the body 1 is connected; in addition, a water storage tank 6 needs to be installed on the upper part of the aforementioned evaporating water tank 2. Are connected to each other so that the water stored in the water storage tank 6 can flow into the evaporating water tank 2 and be absorbed by the evaporator 3. In addition, the upper part of the outer casing 1 needs to be provided with an air outlet 7, which needs to be connected to the outlet of the fan 4. The air ends are connected, and the aforementioned evaporator 3 can be directly placed in the air flow channel 11 between the air outlet 7 and the air outlet end of the fan 4, and the air flow channel 11 is located between the inner wall of the outer shell 1 and the water storage tank 6. Between the outer walls, that is, the inner and outer walls of the foregoing two forms an annular air flow channel 11; that is, when the fan 4 rotates to generate air flow, the air flow passes through the evaporator 3 before being discharged from the air outlet 7, so that the moisture on the evaporator 3 It is evaporated into water molecules and discharged from the air outlet 7 along with the airflow, so as to achieve the purpose of humidifying the air. In order to ensure the compactness of the humidifier structure without affecting the air inlet at the lower part of the outer casing 1, the motor of the aforementioned fan 4 is installed in the outer casing 1 and placed above the fan 4, and then the motor 13 is connected to the fan blades. . Based on the foregoing description, it can be known that in the humidifier structure in this embodiment, the evaporator 3 is placed in the evaporating water tank 2 and placed between the fan 4 and the water tank 5.

In order to further save the space inside the outer casing 1, as mentioned above, the evaporation tank 2 can be set in the form of an annular groove. On this basis, an upward protrusion can also be provided in the middle of the evaporation tank 2. A cavity is formed so that the motor 13 can be installed in the cavity, thereby effectively using the space between the cylindrical evaporator 3 and the evaporation water tank 2.

Preferably, the water storage tank 6, the evaporator 3, the evaporating water tank 2 and the fan 4 can be installed in the outer casing 1 in sequence and longitudinally as shown in FIG. 2, and the water storage tank 6, the evaporator 3, the evaporating water tank 2 and The central axes of the fans 4 coincide with each other to further control the overall volume of the humidifier, truly realize an ultra-small volume and be equipped with a large-capacity water storage tank, making the structure of the humidifier more compact.

In this embodiment, by installing the fan 4 at the lower part of the evaporator 3 and adding an air inlet 5 at the lower part of the outer casing 1, the noise generated by the motor 13 of the fan 4 during operation can be blocked by the evaporator 3. It can effectively reduce the noise during operation of the humidifier. According to the test of the applicant’s laboratory on the prototype, when the humidification capacity is 200ml/h, the noise is lower than 25dB. Therefore, the humidification capacity per unit time can be increased by increasing the fan speed. ; And by designing the air flow passage 11 between the outer wall of the water storage tank 6 and the outer shell 1, and surround the evaporator 3 in the lower part of the water storage tank 6, thereby forming a longitudinal air passage 11 to reduce the air flow caused by the air passage 11 Obstacles, the volume of the humidifier can be further reduced, making the structure of the humidifier more compact, and the combination of the lower air inlet 5 can also improve the overall aesthetics of the humidifier.

Still referring to FIG. 2, in a more preferred embodiment of the present invention for solving the technical problem, in order to optimize the structure of the above-mentioned air flow channel 11 and to make enough space for the evaporator 3, the above-mentioned water storage tank can be directly 6 is designed as a T-shaped structure in longitudinal section. As shown in Figure 2, the upper part of the water storage tank 6 is larger than the lower part of the water storage tank 6, so that the evaporator 3 can be installed around the lower part of the water storage tank, as shown in the figure. Out, the evaporator 3 can also be designed as a T-shaped cylindrical structure. When the cylindrical evaporator 3 is installed around the lower part of the water storage tank 6, the evaporator 3 fits with the lower part of the water storage tank 6, and the evaporator The lower part of 3 is submerged in the evaporating water tank 2. Based on the foregoing structure, it is preferable to design the water storage tank 6 as a structure with a circular cross section, and design the shape of the foregoing evaporator 3 as a cylindrical shape, and save space. The evaporator 3 can be installed around the water storage tank 6 In the lower part of the evaporator 3, the lateral profile area of the upper part of the evaporator 3 is larger than the lateral profile area of the lower part; the evaporator 3 is folded by fiber layers, and the folding density of the lower part of the evaporator 3 is greater than the folding density of the upper part; The sparse and dense structure makes the unfolded volume of the upper part larger than the volume of the relatively tight part of the lower part. It is helpful for the water in the evaporation tank 2 to be smoothly immersed into the evaporator 3 from bottom to top, and when the water in the evaporation tank enters the evaporator 3 from bottom to top through the capillary phenomenon, most of the impurities in the water are evaporated by the evaporator. 3 The lower part is folded and filtered by the denser part, so as to improve the cleanliness of the water entering the upper part of the evaporator 3, and prevent impurities in the water from evaporating into the air with the airflow; and through the above-mentioned evaporator 3, the upper and lower dense structure can be used. Make the upper part of the evaporator 3 full of airflow channels 11, so that the airflow must pass through the evaporator 3, so that while the moisture on the evaporator 3 is evaporated, the humidified evaporator 3 adsorbs and absorbs the air passing through the airflow channel 11 Cleaning, that is, the evaporator 3 can absorb small particles in the air. Based on the same idea as described above, a primary filter can be installed on the air inlet 5 of the outer casing 1, through which the large particles in the air can be filtered, so as to cooperate with the adsorption of the aforementioned evaporator 3.

At the same time, the evaporator 3 has a large and small diameter reducing structure, which can reduce the position occupied by the lower part of the evaporator 3 when placed in the evaporating water tank 2, thereby reducing the width of the evaporating water tank 2, thereby widening the evaporation water tank 2. The side air flow channel further improves the space utilization rate inside the outer shell 1. And by adopting the evaporator of the aforementioned variable diameter structure, the small end with the lower density is densely folded, and the upper end with the lower density is sparse. By installing the fan in the lower part of the evaporator, the operating noise and sound waves can be effectively reduced through the evaporator. The evaporator with a tight lower end and a loose upper section can also improve the turbulence and mass transfer effect of the airflow, making the liquid water on the evaporation device easier to evaporate into water molecules. The applicant’s laboratory tested the prototype and adopted After the evaporation device with the reduced diameter structure, the evaporation capacity of the humidifier was increased from 283ml/h to 435ml/h. At the same time, as mentioned above, the folded layer at the lower end of the evaporation device is easier to intercept impurities in the water to prevent the impurities from being evaporated along with the liquid water.

Furthermore, as shown in FIGS. 5 and 6, in order to increase the fit between the evaporator 3 and the water storage tank 6, in this embodiment, the inventor also provided a tapered surface 31 on the inner side of the upper part of the evaporator 3. , So that the tapered surface 31 can coincide with the outer wall of the water storage tank 6; further, in order to ensure the stability of the evaporator 3 when installed in the evaporating water tank 2, an annular step surface can also be provided on the outside of the lower part of the evaporator 3 32. The annular step surface 32 allows the lower end of the evaporator 3 to be placed in the evaporating water tank 2, and the upper part of the evaporator 3 is used for snapping onto the evaporating water tank 2; and the aforementioned annular step surface 32 is in the longitudinal direction of the evaporator 3. The cross-section is at right angles, so as to ensure the stability of the latching of l at the slot of the evaporation tank 2.

On the other hand, in conjunction with Figure 4, in order to avoid excessive water in the evaporation tank 2 causing overflow, a valve 9 can also be installed in the evaporation tank 2. One end of the valve 9 corresponds to the position of the water inlet 8. A sealable rubber plug is installed on the water port 8. The valve 9 can keep enough water in the evaporation tank 2 at all times. The valve 9 can use the principle of a floating plug valve. When the evaporation tank 2 has a rated water volume, the float floats up. At this time, the water inlet 8 is closed by a rubber plug. When the amount of water in the evaporation tank 2 is insufficient, the float drops, and the other end of the valve 9 lifts the rubber plug on the water inlet to open the water inlet 8 so that the evaporation tank 2 The amount of water in the water is always kept constant, so that the humidification amount is kept constant, and is not affected by the water storage level in the water storage tank 6.

Further, for the convenience of adding water, a cover 10 can be installed on the top of the outer casing 1, and the water storage tank 6 is placed directly under the cover 10. Water can be added to the water storage tank 6. In this embodiment, the aforementioned air outlet 7 can be designed outside the edge of the cover 10.

On the other hand, in order to suppress bacteria in the water in the humidifier, as the preferred structure of the above embodiment, an ultraviolet sterilization lamp can be installed inside the evaporation tank 2; as shown in FIG. 7, in this embodiment, the invention In order to improve the humidification efficiency of the humidifier, a water heating device 12 is installed at the lower part of the evaporating water tank 2, and the heating part of the water heating device 12 is in contact with the bottom of the evaporating water tank 2, so as to facilitate heat transfer. The water in the evaporation tank is heated to increase the evaporation of the water passing through the evaporator 3. According to the test data of the inventor, when the temperature of the water on the evaporator 3 rises, the evaporation can be significantly increased, according to conventional test standards In an environment with a temperature of 23±5°C, the indoor humidity is 30%±5%, and the evaporation capacity is 400ml/h. When the water temperature on the evaporator 3 reaches 35°C, the evaporation capacity is 600ml/h. When reaching 38°C, the evaporation capacity is 900ml/h; therefore, by controlling the power and heating time of the aforementioned water heating device 12, the water in the evaporation tank 2 can always be kept in the temperature range of 30-39°C, thereby increasing the humidification capacity.

Furthermore, the inventor also found through experiments that not only increasing the water temperature can help increase the humidification capacity, but increasing the temperature of the inlet air can also increase the humidification capacity. Based on this technical purpose, the air inlet 5 can be designed at the bottom of the outer shell 1, and Then install an air heating device 14 on the bottom of the outer casing 1, and place the air heating device 14 between the air inlet 5 and the air inlet end of the fan 4, that is, when the fan 4 rotates, the external airflow is passed through the air inlet 5 After entering, it first contacts with the air heating device 14 and then enters the aforementioned air flow channel 11 to contact with the evaporator 3 after raising the temperature, thereby increasing the amount of humidification. The aforementioned water heating device 12 and air heating device 14 can heat water and air flow by means of resistance or electromagnetic coil heating, which will not be described in detail here.

Referring to Fig. 4, the above-mentioned preferred embodiment of the present invention is in actual use. When the power is turned on, the fan 3 starts to rotate, and the outside air enters the airflow channel 11 through the air inlet 5 at the bottom of the outer casing 1. 11 in contact with the evaporator 3, and then discharged from the air outlet 7 on the upper part of the outer casing 1, thereby forming an airflow inside the outer casing 1. In this process, the airflow enters from the bottom of the outer casing 1, and is discharged from the upper side. The vertical direction of the horizontal plane flows from bottom to top; and the valve 9 in the evaporation tank 2 opens the water inlet 8, so that the water in the storage tank 6 flows into the evaporation tank 2. When the liquid level of the evaporation tank 2 reaches the rated line, the valve 9 passes The principle of the floating plug valve closes the water inlet 8. At this time, the lower part of the evaporator 3 is immersed in the water in the evaporation tank 2, and the water gradually penetrates upward in the fiber layer through the capillary phenomenon. Under the action of the aforementioned air flow, the evaporator 3 is The water evaporates and is continuously discharged with the air outlet 7. The fan 3 continues to rotate, and the aforementioned process continues to increase the humidity in the surrounding air; when water needs to be added, water can be directly poured on the cover 10, and the water will flow into the water storage tank through the through holes on the cover 8. It is also possible to open the cover 10 to add water to the water storage tank 6.

In addition to the above, it should be noted that the "one embodiment", "another embodiment", "embodiment", etc. referred to in this specification refer to specific features, structures, or features described in conjunction with the embodiment. The features are included in at least one embodiment generally described in this application. The occurrence of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when describing a specific feature, structure, or characteristic in combination with any embodiment, what is claimed is that the combination of other embodiments to realize such a feature, structure, or characteristic also falls within the scope of the present invention.

Although the present invention has been described with reference to a number of explanatory embodiments of the present invention, it should be understood that many other modifications and embodiments can be devised by those skilled in the art, and these modifications and embodiments will fall into the disclosure of this application. Within the scope and spirit of principles. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements can be made to the component parts and/or the layout of the theme combination layout. In addition to the modification and improvement of the component parts and/or the layout, other uses will also be obvious to those skilled in the art.

Claims

A vertical humidifier with a variable diameter evaporator, characterized in that: the humidifier comprises an outer casing (1), and an evaporation water tank (2) is arranged inside the outer casing (1), and the evaporation water tank (2) An evaporator (3) is provided inside, the evaporator (3) is immersed in the evaporating water tank (2), and a fan (4) is installed below the evaporator (3), the fan (4) The air inlet end of the evaporator is connected with the air inlet (5) of the outer casing (1); the upper part of the evaporation tank (2) is also installed with a water storage tank (6), and the water storage tank (6) also passes through the water inlet (8). ) Communicate with the evaporation tank (2);

The upper part of the outer casing (1) is provided with an air outlet (7), the air outlet (7) is connected to the air outlet end of the fan (4), and the evaporator (3) is placed at the air outlet ( 7) In the airflow channel (11) between the air outlet end of the fan (4), the airflow channel (11) is located between the inner wall of the outer shell (1) and the outer wall of the water storage tank (6).
The vertical humidifier with variable diameter evaporator according to claim 1, characterized in that the longitudinal section of the water storage tank (6) is T-shaped, and the upper part of the water storage tank (6) is larger than the water storage tank (6). ), the upper part of the evaporator (3) surrounds the lower part of the T-shaped water storage tank (6), and the lower part of the evaporator (3) is immersed in the evaporating water tank (2).
The vertical humidifier with variable diameter evaporator according to claim 1 or 2, characterized in that: the evaporator (3) is cylindrical and surrounds the lower part of the water storage tank (6), and the The lateral profile area of the upper part of the evaporator (3) is greater than the lateral profile area of the lower part; the evaporator (3) is folded by fiber layers, and the fold density of the lower part of the evaporator (3) is greater than that of the upper part. density.
The vertical humidifier with variable diameter evaporator according to claim 3, characterized in that: the inner side of the upper part of the evaporator (3) is provided with a tapered surface (31), and the tapered surface (31) is connected to The outer wall of the water storage tank (6) coincides; the outer side of the lower part of the evaporator (3) is provided with an annular step surface (32), and the upper part of the evaporator (3) is clamped on the upper edge of the evaporating water tank (2).
The vertical humidifier with a variable diameter evaporator according to claim 1, characterized in that a valve (9) is installed in the evaporation water tank (2), and the valve (9) corresponds to the water inlet (8), The valve (9) is used to control the amount of water entering the evaporation tank (2) from the water inlet (8).
The vertical humidifier with variable diameter evaporator according to claim 1, characterized in that: the top of the outer casing (1) is provided with a cover (10), and the water storage tank (6) is placed on the cover. Directly below (10), the air outlet (7) is placed outside the edge of the cover body (10).
The vertical humidifier with variable diameter evaporator according to claim 1, characterized in that: the fan (4) comprises a fan blade and a motor (13), and the fan blade is power connected with the motor (13), so The motor (13) is placed above the fan blades, and the motor (13) is placed in an upwardly protruding cavity in the middle of the evaporation water tank (2).
The vertical humidifier with variable diameter evaporator according to claim 1, characterized in that: the water storage tank (6), the evaporator (3), the evaporation tank (2) and the fan (4) are arranged vertically in sequence It is installed in the outer casing (1), and the central axes of the water storage tank (6), the evaporator (3), the evaporating water tank (2) and the fan (4) coincide with each other.
The vertical humidifier with variable diameter evaporator according to claim 1, characterized in that: an ultraviolet sterilization lamp is installed inside the evaporation water tank (2); the lower part of the evaporation water tank (2) is installed Water heating device (12).
The vertical humidifier with variable diameter evaporator according to claim 1, characterized in that: the air inlet (5) is placed at the bottom of the outer shell (1), and the outer shell (1) An air heating device (14) is also installed at the bottom, and the air heating device (14) is placed between the air inlet (5) and the air outlet end of the fan (4); Effective filter.