RU2789179C1 - Vertical humidifier having a variable diameter evaporator - Google Patents

Abstract

FIELD: humidification.

SUBSTANCE: invention discloses a vertical humidifier with an evaporator with a variable diameter, which is an evaporative humidifier, which includes an outer housing, inside which an evaporative water tank is provided, an evaporator is provided in the tank, a fan is installed under the evaporator, the inlet end of the fan is connected to the air inlet into the outer housing; in the upper part of the tank for evaporative water a water storage tank is also installed, the evaporator surrounds the lower part of the tank, and the tank is connected to the evaporative water tank through the water inlet; an air outlet is provided in the upper part of the outer housing, which is connected to the exhaust end of the fan, the evaporator is located in the airflow channel between the air outlet and the exhaust end of the fan.

EFFECT: noise is reduced by installing a fan at the bottom of the evaporator so that the sound waves of the working noise pass through the evaporator and decrease; a variable diameter evaporator with a dense lower end and a loose upper section can also increase the effect of turbulence and mass transfer of the airflow, thereby effectively improving the humidification performance; in addition, a variable diameter evaporator surrounds the longitudinal compact design of the product, which makes the humidifier smaller in volume.

10 cl, 7 dwg

Description

Technical area

The present invention relates to an evaporative humidifier, and more particularly relates to a generally vertical humidifier having a variable diameter evaporator.

Prior Art

An evaporative humidifier uses a fan to create an airflow, as the airflow passes through the evaporator, the water molecules attached to the evaporator evaporate and are released along with the airflow, thus keeping the indoor air humid. Due to the fact that the fan must be driven by an electric motor, and the fan is installed above the humidifier case, the rotation of the fan creates a vacuum in the case, resulting in an air flow, but the operation of the electric motor also creates noise, which imposes increased requirements on the tightness of the humidifier case, and also limits the fan speed due to noise, thereby limiting the maximum humidification performance of the humidifier. And most humidifiers of this design have a bottom-mounted water storage tank. The air flow enters through the air inlet on the case and then exits through the air duct from the top. Due to the need to ensure full contact of the air flow with the evaporator, therefore, the air duct must be installed in a curved shape, which will create certain obstacles to the air flow and lead to noise during operation, while the water storage tank is located at the bottom of the fan, the design of the designed curved duct not only can not control the overall volume of the humidifier product, but also affects the beauty of product design, so further research and improvement of the evaporative humidifier of this design is necessary.

Content of the invention

One of the objectives of the present invention is to provide a vertical humidifier having a variable diameter evaporator to solve technical problems such as noise, poor humidification efficiency when operating similar evaporative humidifiers in the prior art, as well as insufficient compactness of the design, which leads to to a large volume of the product and insufficient aesthetics.

To solve the above technical problems, the following technical solutions are used in the invention:

A vertical humidifier having a variable diameter evaporator according to the present invention: the humidifier includes an outer casing, within which is located a tank for evaporating water, an evaporator is provided inside this tank, the evaporator is immersed in this tank, a fan is installed under the evaporator, the inlet end of the fan is connected to air inlet into the outer housing; at the top of the evaporating water tank, a water storage tank is also installed, and at the bottom of which a water inlet is provided, the water storage tank is connected to the evaporating water tank through the water inlet; an air outlet is provided in the upper part of the outer case, which is connected to the outlet end of the fan, the evaporator is located in the air flow channel between the air outlet and the outlet end of the fan, the air flow channel is located between the inner wall of the outer case and the outer wall of the water storage tank.

A further technical solution is preferred: the longitudinal section of the water storage tank is T-shaped, the outer contour of the upper part of the tank is larger than the outer contour of the lower part of the tank, the upper part of the evaporator surrounds the lower part of the tank, the lower part of the evaporator is immersed in the evaporative water tank.

Further technical solution: the evaporator has a cylindrical shape and surrounds the lower part of the water storage tank, the area of the transverse contour of the upper part of the evaporator is larger than the area of the transverse contour of the lower part of the evaporator; the evaporator is folded from the fibrous layer, and the density of folding of the lower part of the evaporator exceeds the density of folding of the upper part of the evaporator.

Further technical solution: on the inside of the upper part of the evaporator, a conical surface is provided, which coincides with the outer wall of the water storage tank; an annular stepped surface is provided on the outer side of the lower part of the evaporator, the upper part of the evaporator is wedged on the upper edge of the evaporative water tank through the annular stepped surface.

Further technical solution: a valve is installed in the evaporative water tank, which corresponds to the water inlet and is designed to control the volume of water coming from the water inlet to the tank.

Further technical solution: a cover is provided in the upper part of the outer casing, the water storage tank is located directly under the cover, the air outlet is located on the outer side of the edge of the cover.

Further technical solution: the fan includes fan blades and an electric motor, the fan blades are connected to the electric motor, the electric motor is located above the fan blades, and the electric motor is located in the cavity of the ascending ledge in the middle of the evaporative water tank.

Further technical solution: the water storage tank, the evaporator, the evaporative water tank and the fan are installed in series and longitudinally in the outer casing, and their central axes coincide with each other.

Further technical solution: a germicidal UV lamp is also installed inside the evaporating water tank.

Further technical solution: a water heater is installed in the lower part of the evaporating water tank.

Further technical solution: the air inlet is located at the bottom of the outer case, and an air heater is also installed at the bottom of the outer case, which is located between the air inlet and the outlet end of the fan.

Further technical solution: a primary filter mesh is installed at the air inlet.

Compared with the prior art, one of the beneficial effects of this invention is: by installing a fan at the bottom of the evaporator, an additional air inlet is provided at the bottom of the outer casing so that the noise generated by the fan motor during operation is blocked and absorbed by the evaporator as it passes through the evaporator with the wind, thus, it is possible to effectively reduce the noise during the operation of the humidifier, so it is possible to increase the humidification capacity per unit time by increasing the fan speed;

By designing an airflow channel between the outer wall of the water storage tank and the outer shell, and the evaporator surrounds the bottom of the water storage tank, so that a longitudinal airflow channel is formed so that the airflow flows in a direction perpendicular to the horizontal plane, thus shortening the length airflow duct, the airflow duct obstruction is reduced, operating noise sound waves passing through the evaporator can be effectively reduced, thus achieving quietness; Variable diameter evaporator with tight bottom and loose top can also enhance the effect of turbulence and airflow mass transfer, thereby effectively improving humidification performance.

The volume of the humidifier has been further reduced by a vertical design, based on this compact design, a large capacity of the water storage tank can be achieved, combined with a bottom air inlet, the aesthetics of the humidifier as a whole can be improved. Meanwhile, the vertical humidifier having a variable diameter evaporator provided by the present invention has a simple structure, is suitable for industrial production, and is convenient for distribution.

Description of drawings

Figure 1 is a construction diagram to illustrate one embodiment of the invention;

Figure 2 is a longitudinal section of Figure 1;

Figure 3 is a side view along the axis in Figure 2;

Figure 4 - diagram of the increase in place A in Figure 2;

Figure 5 is an evaporator design diagram to illustrate another embodiment of the invention;

Figure 6 is a section of Figure 5;

Figure 7 is a construction diagram to illustrate another embodiment of the invention;

In the figure 1 - outer casing, 2 - evaporative water tank, 3 - evaporator, 31 - conical surface, 32 - annular stepped surface, 4 - fan, 5 - air inlet, 6 - water storage tank, 7 - air outlet, 8 - water inlet, 9 - valve, 10 - cover, 11 - air flow channel, 12 - water heater, 13 - electric motor, 14 - air heater.

Specific Ways to Implement

The following is a further description of the invention in conjunction with the accompanying drawings.

Referring to Figures 1 and 2, one embodiment of the invention is a vertical humidifier having a variable diameter evaporator. This humidifier includes an outer case 1, an evaporating water tank 2 is provided inside the outer case 1, and the tank 2 is preferably annular in shape to accommodate the evaporator 3 inside the tank 2, the function of the evaporator 3 is to adsorb water from the tank 2 to the evaporator 3 according to the principle capillary and subsequent evaporation under the influence of air flow; in this regard, a fan 4 should be installed under the evaporator 3, the fan 4 can be located on the bottom layer of the outer case 1, as shown in figures 2 and 3, and the inlet end of the fan 4 is connected to the air inlet 5 in the outer case 1; in addition, a water storage tank 6 should be installed at the top of tank 2, the function of tank 6 is to store water, and a water inlet 8 should be provided at the bottom of tank 6 to connect tank 6 to tank 2 through this inlet 8 so that water stored in tank 6 entered tank 2 and was absorbed by evaporator 3; in addition, an air outlet 7 should be provided in the upper part of the outer casing 1, the outlet 7 is connected to the outlet end of the fan 4, and the evaporator 3 can be located directly in the air flow channel 11 between the air outlet 7 and the outlet end of the fan 4, and this channel 11 located between the inner wall of the outer casing 1 and the outer wall of the tank 6, that is, the inner and outer walls of these two elements form an annular air flow channel 11; that is, when the fan 4 rotates, an air flow is formed, which passes through the evaporator 3 before leaving the air outlet 7, after which the moisture from the evaporator 3 evaporates into water molecules, which exit with the air flow from the air outlet 7, thus humidifying the air. In order to keep the humidifier compact and not affect the air inlet at the bottom of the outdoor case 1, install the fan motor 4 in the outer case 1 and above the fan 4, then connect the motor 13 to the fan blades. Based on the above, it can be understood that in the design of the humidifier in this embodiment, the evaporator 3 is located in the evaporative water tank 2 and between the fan 4 and the reservoir 6.

In order to further save space inside the outer casing 1, as already mentioned above, the evaporative water tank 2 can be made in the form of an annular tank, on the basis of which an ascending ledge can also be installed in the middle of the tank 2, inside which a cavity is formed, in which an electric motor 13 can be installed, which makes it possible to efficiently use the space between the cylindrical evaporator 3 and tank 2.

Preferably, the above water storage tank 6, evaporator 3, evaporative water tank 2 and fan 4 can be installed in series and longitudinally in the outer casing 1 as shown in figure 2, and the central axes of tank 6, evaporator 3, tank 2 and fan 4 coincide with each other to further control the total volume of the humidifier, which allows ultra-small volume to be realized and equipped with a large-capacity water storage tank, which makes the structure of the humidifier more compact.

In this implementation example, by installing the fan 4 at the bottom of the evaporator 3, additionally provide an air inlet 5 at the bottom of the outer case 1 so that the noise generated by the motor 13 of the fan 4 during operation is blocked and absorbed by the evaporator 3, so that the noise generated by the motor 13 of the fan 4 during operation can be effectively reduced noise during operation of the humidifier. According to the sample test results by the Applicant's laboratory, when the humidification capacity is 200 ml/h, the noise is lower than 25 dB, so it is possible to increase the humidification capacity per unit time by increasing the fan speed; and by designing the air flow channel 11 between the outer wall of the water storage tank 6 and the outer case 1, and the evaporator 3 surrounds the bottom of the tank 6, thus forming a longitudinal air flow channel 11, which reduces the air flow obstruction created by the channel 11, and also further reduces the volume of the humidifier, which makes its design more compact, and also improves the aesthetics of the humidifier as a whole in combination with the bottom air inlet 5.

Still referring to Figure 2, in one more preferred embodiment of the present invention, in order to solve technical problems, in order to optimize the design of the above airflow channel 11 and free up sufficient space for the evaporator 3, the above water storage tank 6 can be directly designed as a structure with a T-shaped longitudinal section, as shown in figure 2, the outer contour of the top of the tank 6 is larger than the outer contour of the bottom of the tank 6, so that the evaporator 3 can install around the bottom of the tank 6, as shown in the figure, the evaporator 3 can be designed in the form of a T-shaped cylindrical structure, when the cylindrical evaporator 3 is installed around the bottom of the tank 6, while the evaporator 3 coincides with the bottom of the tank 6, and the bottom of the evaporator 3 is immersed in the evaporating water tank 2. Based on the above structure, it is preferable to design tank 6 in in the form of a circular cross-section structure, and the shape of the above evaporator 3 is cylindrical, and to save space, it is possible to install the evaporator 3 around the bottom of the tank 6, the area of the cross contour of the upper part of the evaporator 3 is larger than the area of the transverse contour of the bottom of the evaporator 3; the evaporator 3 is folded from the fibrous layer, and the folding density of the lower part of the evaporator 3 is greater than the folding density of the upper part of the evaporator 3; the upper part of the structure of the evaporator 3 is loose, the lower part is dense, so that the volume of the unfolding upper part exceeds the volume of the relatively dense part of the lower part. Contributing to the successful immersion of water from the evaporator water tank 2 into the evaporator 3 from the bottom up, as well as the process of water from the tank into the evaporator 3 from the bottom up through the capillary phenomenon, most of the impurities in the water are filtered at the bottom of the evaporator 3 with a large folding density, which improves the purity of the water entering the top of the evaporator 3, and prevents impurities in the water from entering the air when evaporating with the air flow; and with the above loose upper part and dense lower part of the structure of the evaporator 3, the upper part of the evaporator 3 is covered by the air flow channel 11, so that it must pass through the evaporator 3, so that simultaneously with the evaporation of moisture from the evaporator 3, the air passing in the air flow channel 11 was adsorbed and purified by wet evaporator 3, i.e. Through the evaporator 3, small particles in the air can be adsorbed. Based on the above, at the air inlet 5 to the outer casing 1, a primary filter mesh can be installed, with which large particles in the air can be filtered, which is coordinated with adsorption with the above evaporator 3.

At the same time, the transition design with a large upper diameter and a small lower diameter of the evaporator 3 can reduce the space occupied by the bottom of the evaporator 3 in the evaporative water tank 2, which can reduce the width of the tank 2, thus widening the airflow channel on two sides. tank 2 and improve the utilization of the space inside the outer shell 1. And with the above transition structure evaporator elements, the folded layers at the small lower end with a large density are dense, the folded layers at the large upper end with a small density are sparse. By installing the fan at the bottom of the evaporator, the sound waves of operating noise passing through the evaporator can be effectively reduced, thus achieving quietness; The variable diameter evaporator, with a tight bottom end and a loose top section, can also enhance the effect of turbulence and airflow mass transfer, which allows liquid water on the evaporator elements to more easily evaporate into water molecules. According to the results of sample testing by the Applicant's laboratory, after using a vaporizer with this transitional design, the evaporation of the humidifier increases from 283 ml/h to 435 ml/h. At the same time, as mentioned above, the folded bed at the small lower end of the evaporator intercepts the impurities in the water more easily to prevent the impurities from evaporating along with the liquid water.

Further, as shown in Figures 5 and 6, in order to increase the correspondence between the above evaporator 3 and the tank 6, in this embodiment, the inventor also installs a conical surface 31 on the inside of the upper part of the above evaporator 3, so that this conical surface 31 can coincide with the outside the wall of the water storage tank 6; in addition, in order to ensure the stability of the evaporator 3 when mounted in the evaporating water tank 2, it is also possible to install an annular stepped surface 32 on the outside of the lower part of the evaporator 3, the annular stepped surface 32 allows the lower end of the evaporator 3 to be in the tank 2, and the upper part of the evaporator 3 designed for wedging on the tank 2 through the annular stepped surface 32; and the aforementioned annular stepped surface 32 is at right angles in the longitudinal section of the evaporator 3, which ensures the stability of the wedging in the recess of the tank 2.

On the other hand, in combination with figure 4, in order to avoid overflow caused by excess water in the evaporative water tank 2, valve 9 can also be installed in tank 2, one end of the valve 9 corresponds to the position of water inlet 8, install a sealed rubber stopper, valve 9 ensures constant maintenance of a sufficient volume of water in tank 2, while valve 9 can use the principle of a valve with a float, if there is not enough water in tank 2, the float rises, while the water inlet 8 is closed through the rubber stopper, with a lack water in tank 2, the float falls, the other end of the valve 9 raises the rubber plug at the water inlet, so that the water inlet 8 is open, so the volume of water in tank 2 remains constant, thus the humidification performance remains constant and does not depend on the level water in tank 6.

In addition, for the convenience of filling with water, a cover 10 can be installed on the upper part of the outer casing 1, a water storage tank 6 is located directly under the cover 10, water can be supplied to the tank 6 by opening the cover 10 or passing through the hole in the cover 10. In this example implementation, the above air outlet 7 can be designed on the outside edge of the cover 10.

On the other hand, in order to inhibit bacteria in the water in the humidifier, as a preferred structure for the above embodiment, a UV germicidal lamp can be installed inside the above evaporative water tank 2; in combination with Figure 7, the inventor in this embodiment, in order to improve the humidification efficiency of the humidifier, also installed a water heater 12 at the bottom of the tank 2, and the heating part of the appliance 12 is in contact with the bottom of the tank 2 to facilitate heating the water in the evaporative water tank by heat transfer to increase the evaporation of water through the evaporator 3, according to the experimental data of the inventor, it is known that with an increase in the temperature of the water in the evaporator 3, the evaporation can increase significantly. In accordance with the usual test standards, at an air temperature of 23±5°C and a room humidity of 30%±5%, the evaporative capacity is 400 ml/h, at a water temperature of the evaporator 3 35°C, the evaporative capacity is 600 ml/h, at a water temperature 38°C evaporation is 900 ml/h; thus, by adjusting the heating power and heating time of the above apparatus 12, it is possible to maintain the temperature of the water in the tank 2 in the range of 30-39°C, thereby improving the humidification performance.

In addition, after testing it, the inventor also found that not only raising the water temperature helps to improve the humidification performance, raising the intake air temperature also improves the humidification performance, based on this technical purpose, the air inlet 5 can be designed at the bottom of the outer case 1, then install an air heating device 14 on the bottom of the outer case 1, the device 14 is placed between the air inlet 5 and the inlet end of the fan 4, that is, when the fan 4 rotates, the external air flow entering through the air inlet 5 first comes into contact with the device 14, after the temperature rises , then enters the above airflow channel 11 and comes into contact with the evaporator 3, which improves the humidification performance. The above water heater 12 and air heater 14 can heat water and air flows by heating with a resistor or an electromagnetic coil, no more details here.

Referring to Figure 4, in the practical use of one of the above preferred embodiments of the present invention, after turning on the power supply, the fan 3 starts to rotate, the outside air through the air inlet 5 at the bottom of the outer casing 1 enters the air flow channel 11, in the channel 11 comes into contact with the evaporator 3 and then exits from the air outlet 7 at the top of the outer case 1, resulting in an air flow inside the outer case 1; while the air flow enters from the bottom of the outer casing 1, exits from above and flows from the bottom up in the direction perpendicular to the horizontal plane; and the valve 9 in the evaporative water tank 2 opens the water inlet 8 so that the water from the water storage tank 6 enters the tank 2, when the liquid level in the tank 2 reaches the nominal line, the valve 9 closes the water inlet 8 according to the float valve principle, when At the same time, the lower part of the evaporator 3 is immersed in the water in the tank 2, moisture gradually penetrates upward into the fiber layer through the capillary phenomenon, under the action of the above air flow, the moisture from the evaporator 3 is evaporated and continuously discharged from the air outlet 7. The fan 3 rotates continuously, the above process continues continuously , which increases the humidity in the surrounding air; If you need to add water, you can drain the water directly to the cover 10, the water will flow into the water storage tank through the hole on the cover 10, you can also open the cover 10 to add water to the water storage tank 6.

In addition to the above, it is necessary to clarify that this instruction refers to "one implementation example", "another implementation example", "an implementation example", etc., which means that the described particular characteristic, design or feature in combination with this implementation example are included in at least one implementation example described in general terms in this application. The occurrence of the same expression in multiple places in a statement does not necessarily refer to the same implementation example. In addition, when describing one particular characteristic, design, or feature in combination with any embodiment, it is stated that the implementation of that characteristic, structure, or feature in combination with other embodiments is also within the scope of the present invention.

Although the present invention has been described herein with reference to numerous illustrative examples of its implementation, it should be understood that many other modifications and methods of implementation can be developed by those skilled in the art, which will be within the principles and spirit of the disclosure of this application. More specifically, within the framework of the disclosure of this application, the attached drawings and claims, various modifications and improvements to the constituent parts of the thematic layout and/or layout are allowed. In addition to modifications and improvements in components and/or layout, other uses will be apparent to those skilled in the art.

Claims (10)

1. A vertical humidifier having an evaporator with a variable diameter and containing an outer casing (1), an evaporative water tank (2) is provided inside the outer casing (1), an evaporator (3) is provided inside the tank (2), the evaporator (3) is immersed in tank (2), a fan (4) is installed under the evaporator (3), the inlet end of the fan (4) is connected to the air inlet (5) to the outer casing (1); a tank for storing water (6) is also installed in the upper part of the tank (2), and a water inlet is provided in the lower part of the tank (6), the tank (6) is connected to the tank (2) through the water inlet (8); an air outlet (7) is provided in the upper part of the outer casing (1), the outlet (7) is connected to the outlet end of the fan (4), the evaporator (3) is located in the air flow channel (11) between the air outlet (7) and the outlet end of the fan (4), the air flow channel (11) is located between the inner wall of the outer casing (1) and the outer wall of the water storage tank (6). 2. A vertical humidifier having a variable diameter evaporator according to claim 1, characterized in that the longitudinal section of the water storage tank (6) is T-shaped, the outer contour of the upper part of the tank (6) is larger than the outer contour of the lower part tank (6), the top of the evaporator (3) surrounds the bottom of the tank (6), the bottom of the evaporator (3) is immersed in the evaporative water tank (2). 3. Vertical humidifier having a variable diameter evaporator according to claims 1, 2, characterized in that the evaporator (3) has a cylindrical shape and surrounds the lower part of the water storage tank (6), the area of the transverse contour of the upper part of the evaporator (3) greater than the area of the transverse contour of the lower part of the evaporator (3); the evaporator (3) is folded from a fibrous layer, and the density of folding of the lower part of the evaporator (3) is greater than the density of folding of the upper part of the evaporator (3). 4. A vertical humidifier having a variable diameter evaporator according to claim 3, characterized in that a conical surface (31) is provided on the inside of the upper part of the evaporator (3), the conical surface (31) coincides with the outer wall of the water storage tank ( 6); an annular stepped surface (32) is provided on the outer side of the lower part of the evaporator (3), the upper part of the evaporator (3) is wedged through the annular stepped surface (32) on the upper edge of the evaporative water tank (2). 5. A vertical humidifier having an evaporator with a variable diameter according to claim 1, characterized in that a valve (9) is installed in the evaporative water tank (2), the valve (9) corresponds to the water inlet (8) and the valve (9) is intended to control the volume of water coming from the water inlet (8) to the tank (2). 6. A vertical humidifier having an evaporator with a variable diameter according to claim 1, characterized in that a cover (10) is provided in the upper part of the outer casing (1), a water storage tank (6) is located directly under the cover (10), the outlet air (7) is located on the outer side of the edge of the cover (10). 7. A vertical humidifier having a variable diameter evaporator according to claim 1, characterized in that the fan (4) includes fan blades and an electric motor (13), the fan blades are connected to the electric motor (13), the electric motor (13) is located above fan blades and the electric motor (13) is located in the cavity of the rising ledge in the middle of the evaporative water tank (2). 8. A vertical humidifier having a variable diameter evaporator according to claim 1, characterized in that the water storage tank (6), the evaporator (3), the evaporative water tank (2) and the fan (4) are installed in series and longitudinally in outer casing (1) and the central axes of the tank (6), evaporator (3), tank (2) and fan (4) coincide with each other. 9. A vertical humidifier having an evaporator with a variable diameter according to claim 1, characterized in that a germicidal ultraviolet lamp is also installed inside the evaporative water tank (2); a water heater (12) is installed in the lower part of the tank (2). 10. A vertical humidifier having an evaporator with a variable diameter according to claim 1, characterized in that the air inlet (5) is located at the bottom of the outer casing (1), an air heater (14) is also installed at the bottom of the outer casing (1), the device (14) is located between the air inlet (5) and the outlet end of the fan (4); the primary filter mesh is installed at the air inlet (5).

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