WO2023137824A1

WO2023137824A1 - Air cleaning device and air cleaning method

Info

Publication number: WO2023137824A1
Application number: PCT/CN2022/077824
Authority: WO
Inventors: 李�荣
Original assignee: 水爱电器科技(海南)有限公司
Priority date: 2022-01-20
Filing date: 2022-02-25
Publication date: 2023-07-27
Also published as: CN114353242B; CN114353242A

Abstract

Disclosed is an air cleaning device, comprising an upper shell, a fan, a taper pipe assembly, a water tank and an air guide ring. An air outlet is formed in the top of the upper shell. A driving motor is fixedly arranged in the upper shell. The fan is arranged in the upper shell and is fixedly connected to a motor output shaft of the driving motor. An upper shaft of the taper pipe assembly is connected to the motor output shaft by means of a coupling mechanism. The driving motor may drive the fan and the taper pipe assembly to rotate synchronously. The water tank is arranged below the upper shell. The air guide ring is fixedly connected to the upper shell by means of an air inflow piece and is arranged on an edge of the top of the water tank. The air inflow piece has an axial extension part. The diameter of the axial extension part is less than that of the water tank, so that an annular air inlet is formed between the upper shell and the air guide ring. In the present invention, by means of ingeniously utilizing the principle of aerodynamics, airflow can pass through a spraying area twice, so that a larger air-liquid contact area can be achieved, thereby improving apparatus efficiency. Further disclosed is an air cleaning method.

Description

Air cleaning device and air cleaning method

technical field

The invention relates to an indoor air treatment device, in particular to an air cleaning device. The invention also relates to an air cleaning method.

Background technique

At present, there are four main types of equipment for cleaning gas:

1. Simple gas washing equipment; place the gas outlet below the liquid surface, let the gas flow into the liquid, and then separate naturally. During the gas-liquid contact, gaseous impurities that can chemically react with the liquid or are easily soluble in the liquid will remain in the liquid, thereby serving the purpose of cleaning the gas. However, this kind of gas washing equipment has a small gas-liquid contact area and short contact time during the working process, so the cleaning efficiency is low. This equipment is only suitable for occasions where the content of gaseous impurities is low and the cleaning effect is not high.

2. Spray equipment; use the nozzle to disperse and spray the liquid, and then drive the gas to pass through the liquid dispersion area; during the gas-liquid contact, the solid and gaseous impurities in the gas will remain in the liquid, thereby cleaning the gas. The spray equipment can increase the surface area of the liquid to increase the contact area of the gas and liquid, thereby enhancing the cleaning effect of the gas. Sprinkler equipment can be connected in series or in parallel in multiple stages, with powerful processing capacity, and is widely used in industry. However, the sprinkler equipment needs to be equipped with special water pumps, nozzles and water circulation systems, etc., which has high requirements for subsequent maintenance, and is relatively large in size and noise. Although it can be miniaturized or even miniaturized, the cleaning effect is not good after the volume is reduced, and the noise is difficult to reduce to a low level due to the existence of the water pump, so it is difficult to use in a home environment.

3. Absorption towers, such as packed towers/floating raft towers and other professional gas-liquid exchange equipment, are generally used in chemical industries and can effectively clean gases. They are bulky professional equipment that requires professionals to operate and use. Even if the volume is reduced, it is difficult to use in a home environment.

4. Stirrer: There are two types of stirring equipment for cleaning gas. One is to use mechanical structure (blade/blade/tube, etc.) to beat the liquid to make the liquid splash, and at the same time to drive the gas to pass through the splashed liquid, so as to achieve the purpose of cleaning the gas; The notable feature of this method of cleaning the gas is that the liquid is dispersed after being impacted, resulting in a relatively large surface area. However, no matter whether the liquid collides with a mechanical structure or a high-speed airflow, it will generate large vibration and noise, and cannot be used in a home environment for a long time. For example: washing type vacuum cleaner, the noise and vibration are very loud and deafening during operation.

To sum up, currently commonly used gas cleaning equipment is not suitable for air cleaning in a home environment. Air cleaning in a household environment seems to be very simple, but the actual requirements are very demanding: it requires high cleaning efficiency, miniaturized volume and extremely low noise, and is easy to use and maintain. Of course, the cost should not be too high, and it must be easy to produce and manufacture. These stringent requirements have severely limited the product development of household air cleaning equipment. Since the Industrial Revolution, no mature products have been released so far.

technical problem

The technical problem to be solved by the present invention is to provide an air cleaning device, which can clean and purify indoor air.

technical solution

In order to solve the problems of the technologies described above, the technical solution of the air cleaning device of the present invention is:

Comprising an upper housing 111, a fan 113, a conical tube assembly 1, a water tank 101 and an air guide ring 115, the top of the upper housing 111 is provided with an air outlet F2; the upper housing 111 is fixedly provided with a driving motor 112; the fan 113 is arranged in the upper housing 111; the fan 113 is fixedly connected to the motor output shaft 3 of the driving motor 112; 13 and the tapered tube assembly 1 rotate synchronously; the water tank 101 is arranged below the upper casing 111; the wind guide ring 115 is fixedly connected to the upper housing 111 through the air inlet part 114; the air guide ring 115 is arranged on the top edge of the water tank 101; .

In another embodiment, the air guide ring 115 includes an inner ring 115-1 and an outer ring 115-2, the inner ring 115-1 is arranged inside the outer ring 115-2, an annular cavity is formed between the inner ring 115-1 and the outer ring 115-2; a plurality of arc-shaped blades 115-3 are distributed along the circumference of the annular cavity, and the arc-shaped blades 115-3 extend from the top of the annular cavity to the bottom of the annular cavity in the circumferential direction, separating the annular cavity It is a plurality of arc-shaped passages; the entrance of the arc-shaped passage faces the annular air inlet F1 at the top of the air guide ring 115 , and the outlet of the arc-shaped passage faces the inner wall of the water tank 101 at the bottom of the air guide ring 115 .

In another embodiment, the outer ring 115 - 2 of the air guiding ring 115 matches with the water tank 101 ; the inner ring 115 - 1 of the air guiding ring 115 matches with the axial extension 114 - 1 of the air inlet 114 .

In another embodiment, the water outlet 1-11 of the tapered pipe 1-1 of the tapered pipe assembly 1 is set on the upper part of the tapered pipe 1-1; the lowest point of the water outlet 1-11 is used as the highest water level of the water tank 101; above the highest water level of the water tank 101 is used as the injection area E2.

In another embodiment, the coupling mechanism 2 includes an elastic coupling 2-2, the upper end of the elastic coupling 2-2 is connected to the motor output shaft 3 through the transition shaft 2-1, and the lower end of the elastic coupling 2-2 is connected to the upper shaft 1-3 of the tapered tube assembly 1; the upper shaft 1-3 of the tapered tube assembly 1 is penetrated in the support, and the support is fixedly connected to the air inlet 114 through the support arm 2-7; the support and suspension of the tapered tube assembly 1 are realized through the support.

In another embodiment, the height of the inner end of the support arm 2-7 is greater than the height of the outer end.

In another embodiment, the lower shaft 1 - 5 of the conical tube assembly 1 is connected to the base bracket 5 through the underwater positioning member 4 .

In another embodiment, the underwater positioning member 4 includes a positioning ring 4-1 and a vibration-damping ring 4-2, the positioning ring 4-1 is arranged in the vibration-damping ring 4-2, and the vibration-damping ring 4-2 is fixedly connected to the base bracket 5; the lower shaft 1-5 of the cone tube assembly 1 is movably arranged in the positioning ring 4-1, and the positioning ring 4-1 performs circumferential positioning on the lower shaft 1-5 of the cone tube assembly 1; the base bracket 5 has a plurality of wings.

In another embodiment, a base 103 is provided below the base support 5, and a conical tube cover 102 is provided above the base support 5; the conical tube cover 102 is fixedly connected to the base 103, and the base support 5 and the filter screen below it are wrapped inside.

In another embodiment, the conical tube housing 102 is fixedly connected with the air inlet 114 as a whole through the connecting rod 104 .

In another embodiment, the connecting rod 104 is made of metal or a metal cladding layer; or, the material of the connecting rod 104 is silver or copper, or silver or copper is used as a cladding layer, or an alloy containing silver or copper.

In another embodiment, the height of the cone tube cover 102 is smaller than the height of the cone tube 1 - 1 ;

The present invention also provides a kind of air cleaning method, and its technical solution is, comprises the following steps:

The drive motor 112 drives the fan 113 to rotate synchronously with the conical tube assembly 1;

During rotation, the fan 113 blows air out from the air outlet F2, forming a negative pressure in the space above the water surface of the water tank 101. The negative pressure makes the outside air enter the water tank 101 obliquely downward along the plurality of arc-shaped passages of the air guide ring 115 through the annular air inlet F1; Form the first helical airflow I1 that rotates and flows downward;

At the same time, the conical tube 1-1 of the conical tube assembly 1 sucks the water in the water tank 101 into its inner cavity from the water inlet at the bottom during the rotation process; the water moves upward along the conical tube 1-1 to the spray area, and is thrown out through the water outlet of the side wall of the conical tube 1-1, forming a water line in the spray area; Under the double action of force and gravity, it flows downward along the inner wall of the water tank 101, and merges with the water body in the water tank 101 to realize water circulation;

While the water moves upward from the bottom of the tapered pipe 1-1, the centrifugal force and negative pressure generated by the tapered pipe 1-1 during the rotation act together to drive the airflow around the tapered pipe 1-1 to move upwards, forming a second spiral airflow I2 that rotates upwards;

The first helical airflow I1 passes through the injection area from top to bottom, and the second helical airflow I2 passes through the injection area from bottom to top. The air flow contacts the water line and the water mist during the two passes through the injection area, and the water settles the impurities in the air flow, thereby cleaning the air; at the same time, when the air flow contacts the water line and the water mist in the injection area, part of the water evaporates, thereby increasing the humidity of the air.

In another embodiment, the diameter of the first helical airflow I1 is determined by the diameter of the tank 101; the diameter of the second helical airflow I2 is determined by the diameter of the tapered pipe 1-1.

Beneficial effect

The invention utilizes the rotation of the conical tube to move water upwards along the inner wall of the conical tube, and throw it out through the through hole of the conical tube, and is atomized under the action of the inner wall of the water tank, thereby forming water mist in the gas-liquid mixing space around the conical tube; on the other hand, the conical tube will form centrifugal force during the rotation process, so that the spiral air flow that originally moves downward flows upward; During the process, it is in full contact with the water line and water mist in the gas-liquid mixing space. During the contact process, the water can fully dissolve and wash the small particles of impurities in the air; at the same time, the large particles of impurities in the air flow are separated from the air under the action of the centrifugal force formed by the spiral movement, hit the inner wall of the water tank, and enter the water, thereby realizing air cleaning.

The tapered pipe of the present invention acts on water together with the inner wall of the water tank, and can turn water into waterline and water mist, thereby increasing the surface area of the water body, thus increasing the contact area between air and water from the perspective of water.

The invention can make the air flow repeatedly flow in the water tank, thereby significantly prolonging the flow path of the air flow in the water tank; the air flow can fully contact with the water during the flow process, so the contact area between the air and water can be increased from the perspective of air.

The invention increases the contact area and contact time of air and water from two angles of water and air respectively, so the cleaning effect is remarkable.

The invention skillfully utilizes the principle of aerodynamics, so that the air flow can pass through the injection area twice, so that more gas-liquid contact areas can be generated, and the efficiency of the equipment is improved. The present invention gets rid of the technical prejudice that the power of the motor must be increased in order to improve the cleaning effect in the prior art, and strives to increase the contact area between air and water, so that the air cleaning technology achieves a qualitative leap.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

Fig. 1 is a schematic sectional view of an air cleaning device of the present invention;

Fig. 2 is the exploded schematic view of the present invention;

Fig. 3 is the exploded schematic view of the body of the present invention combined with the water tank;

Fig. 4 is the schematic diagram of the combination of the body and the water tank of the present invention;

Fig. 5 is a schematic diagram of the circulation track of water during the working process of the present invention;

Fig. 6 is a schematic diagram of the airflow trajectory during the working process of the present invention; the figure only illustrates the trajectory of the airflow produced by an arc channel;

Fig. 7 is a simulated airflow trajectory diagram according to the structure of the present invention;

Fig. 8 is a schematic diagram of the first helical airflow and the second helical airflow formed in the working process of the present invention, which is a simplified schematic diagram of Fig. 7;

Fig. 9 is a schematic diagram of the air guiding ring of the present invention;

Fig. 10 is the schematic diagram of tapered tube mechanism of the present invention;

Fig. 11 is a schematic cross-sectional view of the taper tube assembly of the present invention;

Fig. 12 is a schematic sectional view of the cone mechanism of the present invention;

Fig. 13 is an exploded schematic view of the cone mechanism of the present invention.

Embodiments of the present invention

As shown in Figures 1 to 4, the air cleaning device of the present invention includes a cone mechanism, and the coupling mechanism 2 of the cone mechanism is connected to the motor output shaft 3 of the drive motor 112; the drive motor 112 is fixedly arranged in the upper casing 111; the top of the upper casing 111 is provided with an air outlet F2;

A fan 113 is movable in the upper housing 111; the output shaft 3 of the driving motor 112 is fixedly passed through the inner hole of the fan 113, and the motor output shaft 3 is fixedly connected with the fan 113; the lower end of the motor output shaft 3 is connected to the upper shaft 1-3 of the tapered tube assembly 1 through the coupling mechanism 2; the driving motor 112 can drive the fan 113 and the tapered tube assembly 1 to rotate synchronously; the fan 113 is preferably a centrifugal fan;

The bottom of the upper casing 111 is fixedly connected to the air guide ring 115 through the air inlet 114; the air guide ring 115 is arranged on the top of the water tank 101;

The air inlet 114 has an axial extension 114-1, and the axial extension 114-1 forms a vertical distance W between the upper housing 111 and the air guide ring 115, thereby forming an annular air inlet F1 between the upper housing 111 and the air guide ring 115;

The diameter of the axial extension 114-1 of the air inlet 114 is smaller than the diameter of the water tank 101, so that the air inlet F1 is located above the edge of the water tank 101, so that air can enter the edge of the water tank 101 from above;

In the present invention, an annular air inlet F1 is formed between the upper housing 111 and the air guide ring 115. The negative pressure generated by the rotation of the fan 113 can make the air near the air inlet F1 sucked in from all around, so that the air around the machine can be cleaned at the same time, so the processing capacity per unit time of the present invention is larger.

As shown in Figure 9, the air guide ring 115 includes an inner ring 115-1 and an outer ring 115-2, the inner ring 115-1 is arranged inside the outer ring 115-2, an annular cavity is formed between the inner ring 115-1 and the outer ring 115-2, and a plurality of arc-shaped blades 115-3 are distributed in the annular cavity along the circumferential direction, and each blade 115-3 extends circumferentially from the top of the annular cavity to the bottom of the annular cavity, thereby dividing the annular cavity into a plurality of arc-shaped passages, The arc channel extends circumferentially from the top of the air guide ring 115 to the bottom of the air guide ring 115; the inlet of the arc channel faces the annular air inlet F1 at the top of the air guide ring 115, and the outlet of the arc channel faces towards the inner wall of the tank 101 at the bottom of the air guide ring 115;

The outer ring 115-2 of the air guide ring 115 is matched with the water tank 101, so that the air guide ring 115 can extend into the water tank 101 and be arranged on the top of the water tank 101;

The inner ring 115-1 of the air guide ring 115 matches the axial extension 114-1 of the air inlet part 114; the annular cavity of the air guide ring 115 matches the annular air inlet cavity and is located above the edge of the water tank 101;

In the present invention, the air inlet is arranged above the water tank 101, so that the air inhaled from the side of the body has a tendency to move downward; at the same time, the present invention is provided with an air guide ring 115 below the air inlet, and the arc-shaped channel formed between the adjacent arc-shaped blades 115-3 of the air guide ring 115 extends from the top of the air guide ring 115 to the bottom of the air guide ring 115 along the circumferential direction. Make it obliquely downward and flow into the water tank 101 along the inner wall of the water tank 101, so that the air sucked from the side of the body flows downward into the water tank 101 in a spiral shape, thereby forming a first spiral airflow that rotates and flows downward on the top of the water tank 101.

A lap ring 115-21 is formed on the top of the outer ring 115-2. The diameter of the lap ring 115-21 is larger than the diameter of the water tank 101. The outer ring 115-2 of the air guide ring 115 can be lapped on the top of the water tank 101 through the lap ring 115-21, so that the body can be suspended in the water tank 101.

The air cleaning method of the present invention comprises the following steps:

Turn on the driving motor 112, and the driving motor 112 drives the fan 113 and the tapered tube assembly 1 to rotate synchronously;

The fan 113 blows air out from the air outlet F2 during rotation, thereby forming a negative pressure in the space above the water surface of the water tank 101. This negative pressure makes the outside air enter the water tank 101 from top to bottom along the multiple arc channels of the air guide ring 115 through the side air inlet F1; Under the combined action of the barriers of the water tanks, a spiral airflow is formed, and the spiral airflow flows obliquely downward along the inner wall of the water tank 101 to the inside of the water tank 101; the spiral airflow is used as the first spiral airflow I1, and the first spiral airflow I1 rotates and flows downward in the water tank 101;

At the same time, the conical tube 1-1 of the conical tube assembly 1 sucks the water in the water tank 101 into its inner cavity from the water inlet at the bottom during the rotation process; the water moves upwards along the conical tube 1-1 to the spray area, and is thrown out through the through hole in the side wall of the conical tube 1-1, forming a dense ring-shaped water line in the spray area; The inner wall of 101 forms a water mist layer, and the water mist flows down along the inner wall of the water tank 101 under the double action of centrifugal force and gravity, and merges with the water body in the water tank 101 to realize water circulation, as shown in Figure 5;

While the water moves upward from the bottom of the conical tube 1-1, the centrifugal force and negative pressure produced by the conical tube 1-1 during the rotation act together to drive the airflow around the conical tube 1-1 to move upwards, forming a second spiral airflow I2; the second spiral airflow I2 rotates and flows upwards in the water tank 101, enters the fan 113 through the space between the support arms 2-7, and finally is discharged from the air outlet F2, as shown in Figures 6 to 8;

The first spiral airflow I1 passes through the spray area from top to bottom, and the second spiral airflow I2 passes through the spray area from bottom to top. The air flow fully contacts the water line and water mist during the two passes through the spray area.

The diameter of the first helical airflow I1 is determined by the diameter of the water tank 101, and the diameter of the second helical airflow I2 is determined by the diameter of the tapered pipe 1-1. Obviously, the second helical airflow I2 is located inside the first helical airflow I1, so the two will not interfere with each other, as shown in Figures 7 and 8; it should be noted that Figure 7 is a simulated airflow trajectory diagram according to the structure of the present invention, which is provided by SOLIDWORKS Flow simulation (fluid analysis) software is automatically generated; Figure 8 is a simplified schematic diagram of the airflow trajectory in Figure 7;

The present invention utilizes the synergistic effect of the air guide ring 115 and the conical pipe 1-1 to allow outside air to enter the spray area on the upper part of the water tank 101, and then firstly form a downward-flowing first spiral airflow at the inner wall of the water tank below the air guide ring 115, and then form an upward-flowing second spiral airflow around the conical pipe 1-1. into the water to clean the air.

The running path of the airflow in the water tank of the present invention is first to flow downward as the first spiral airflow, and then to flow upward as the second spiral airflow. Since the running path is long enough, there is sufficient time to contact the water line and water mist, so the cleaning effect is obvious.

The invention utilizes the full contact of air flow and water to realize air cleaning. The cleaning method does not need any consumables such as activated carbon, but uses water itself as a consumable. Once the water used as a consumable is polluted by impurities in the air, just replace the water. The invention completely gets rid of the dependence of air cleaning equipment on consumables.

The water mist generated during the working process of the present invention only exists in the spray area of the water tank 101, and the water mist flows downwards and returns to the water tank 101 under the double action of centrifugal force and gravity, and the second spiral airflow needs to pass through the upper fan 113 to be discharged from the air outlet F2, so the present invention can realize automatic demisting, and there will be no water mist visible to the naked eye at the air outlet F2.

The upper part of the water tank 101 of the present invention is used as the spraying area E2. After the water passes through the through hole of the side wall of the tapered pipe 1-1 and is thrown out, the inner wall of the water tank 101 can produce a resistance to the water, so that the water flows downward along the inner wall of the water tank 101; The inner wall of the part runs, so that the running path of the airflow is helical, forming the first helical airflow. Therefore, the water tank 101 of the present invention is not only used for water storage, but also can guide the trajectory of the airflow together with the air guide ring 115, and can also generate resistance to the water flow ejected from the tapered pipe 1-1, so that the air can fully contact with the water, thereby realizing the cleaning of the air.

Preferably, the water tank 101 can be made of transparent material, which is beneficial to observe the water level and the water spraying effect of the conical pipe.

As shown in Figure 10, the tapered pipe mechanism includes a tapered pipe assembly 1, the upper shaft 1-3 of the tapered pipe assembly 1 is connected to the motor output shaft 3 through the coupling mechanism 2; the lower shaft 1-5 of the tapered pipe assembly 1 is movably connected to the base bracket 5 through the underwater positioning member 4;

As shown in Figure 11, the conical tube assembly 1 includes a conical tube 1-1 arranged upside down and small in size. The side wall of the conical tube 1-1 is provided with a plurality of through holes as water outlets 1-11. The inner wall of the conical tube 1-1 is formed with spiral blades 1-12 extending longitudinally; the upper end of the conical tube 1-1 is fixedly connected to the upper shaft 1-3 through the upper cover 1-2, and the lower end of the conical tube 1-1 is fixedly connected to the lower shaft 1-5; preferably, the water outlet 1-11 is opened On the upper part of the tapered pipe 1-1, as shown in Figure 9, it corresponds to the spray area E2 of the water tank 101;

The upper shaft 1-3 extends into the upper cover 1-2, and the lower end of the upper shaft 1-3 is threaded through the nut 1-6 to realize the locking connection between the upper shaft 1-3 and the upper cover 1-2;

Since the tapered tube 1-1 is in a high-speed rotating state during the working process, in order to further ensure the fixed connection between the tapered tube 1-1 and the upper cover 1-2, the outer cover of the upper cover 1-2 is provided with a fastening piece 1-4; through the fastening piece 1-4, the fixed connection between the upper cover 1-2 and the conical tube 1-1 is realized; the fastening piece 1-4 is of a two-petal type to facilitate assembly; the fastening piece 1-4 forms an accommodating cavity, so that the upper cover 1-2 is wrapped in it;

The lower end of the tapered pipe 1-1 is formed with a lower shaft connecting hole, and the tapered pipe 1-1 is fixedly connected to the lower shaft 1-5 through the lower shaft connecting hole; the tapered pipe 1 can be an injection molded part; the lower end of the tapered pipe 1-1 forms a plurality of water inlets, and the water inlets communicate the space below the tapered pipe 1-1 with the inner cavity of the tapered pipe 1-1, so that the water in the water tank 101 can enter the inner cavity of the tapered pipe 1-1 from the bottom.

As shown in Figures 12 to 13, the coupling mechanism 2 includes a transition shaft 2-1, an elastic coupling 2-2, an upper bracket 2-3 of the bearing sleeve, and a lower bracket 2-4 of the bearing sleeve; the upper end of the transition shaft 2-1 is threadedly connected to the lower end of the motor output shaft 3, and the lower end of the transition shaft 2-1 is fixedly connected with the flat upper slot 2-21 on the top of the elastic coupling 2-2 through a flat connection part 2-11; the flat lower slot 2-22 at the bottom of the elastic coupling 2-2 It is fixedly connected with the flat upper connecting part 1-31 of the upper shaft 1-3; the elastic coupling 2-2 is made of elastic material, such as rubber;

Bearing sleeve upper support 2-3 and bearing sleeve lower support 2-4 are formed with a plurality of support arms 2-7, and bearing sleeve upper support 2-3 and bearing sleeve lower support 2-4 are fixedly connected to the inner wall of the air inlet part 114 through support arms 2-7; when the tapered pipe assembly 1 rotates, bearing sleeve upper support 2-3 and bearing sleeve lower support 2-4 are fixed;

The height of the inner end of the support arm 2-7 is greater than the height of the outer end (that is, an angle is formed between the support arm 2-7 and the horizontal plane), so that the support arm 2-7 assumes an inclined posture;

The upper bracket 2-3 of the bearing sleeve is fixedly connected with the lower bracket 2-4 of the bearing sleeve to form a support member; the inner surfaces of the upper bracket 2-3 of the bearing sleeve and the lower bracket 2-4 of the bearing sleeve are spherical, the upper bracket 2-3 of the bearing sleeve and the lower bracket 2-4 of the bearing sleeve form a spherical bearing sleeve accommodation cavity, and the bearing sleeve 2-5 is fixedly arranged in the bearing sleeve accommodation cavity, and the bearing 2-6 is arranged in the bearing sleeve 2-5;

The function of the support of the present invention is to provide supporting force to the tapered tube assembly 1 through a plurality of support arms 2-7, so that the tapered tube assembly 1 is in a suspended state, and the weight of the tapered tube assembly 1 is all carried by the support arms 2-7, so that the tapered tube assembly 1 can rotate at high speed under noise, so the supporting arms 2-7 must provide sufficient supporting force; at the same time, during the working process of the tapered tube assembly 1, the air flow needs to pass through the space between the adjacent supporting arms 2-7 to flow upwards, so the width of the supporting arms 2-7 should be as small as possible. The present invention adopts the support arms 2-7 in an inclined posture, and multiple support arms 2-7 provide oblique upward support force for the tapered tube assembly 1 at the same time, which not only ensures the smooth rotation of the tapered tube assembly 1, but also does not cause interference to the air flow, so the present invention has extremely low noise during operation.

The bearing 2-6 is a standard rolling bearing; the bearing sleeve 2-5 is fixedly connected to the outer ring of the bearing 2-6 through the inner hole, and the inner ring of the bearing 2-6 is fixedly pierced with the upper shaft 1-3 of the tapered tube assembly 1, and the inner ring of the bearing 2-6 and the upper shaft 1-3 are interference fit; preferably, the bearing 2-6 can use a load-bearing bearing such as a deep groove ball bearing or an angular contact ball bearing;

The outer ring of the bearing sleeve 2-5 is spherical, so that a spherical fit is formed between the bearing sleeve 2-5 and the bearing sleeve accommodating cavity of the support member; the bearing sleeve 2-5 is made of elastic material, such as rubber or silica gel.

The underwater positioning part 4 includes a positioning ring 4-1 and a vibration damping ring 4-2. The positioning ring 4-1 is fixedly arranged in the vibration damping ring 4-2, and the vibration damping ring 4-2 is fixedly connected to the base bracket 5; Water can enter the inner cavity of the tapered pipe 1-1 through the channel between the adjacent wing plates through the water inlet at the lower end of the tapered pipe 1-1;

The diameter of the inner hole of the positioning ring 4-1 is greater than the outer diameter of the lower shaft 1-5, and the positioning ring 4-1 is movably connected with the lower shaft 1-5 of the tapered tube assembly 1 through the inner hole, and the lower shaft 1-5 of the tapered tube assembly 1 can freely rotate and slide up and down in the positioning ring 4-1; the positioning ring 4-1 is used for circumferentially positioning the lower shaft 1-5 of the tapered tube assembly 1 to prevent the tapered tube assembly 1 from swaying or shaking during rotation;

The outer ring of the positioning ring 4-1 is a spherical surface, so that a spherical surface fit is formed between the positioning ring 4-1 and the spherical inner hole of the vibration damping ring 4-2;

The damping ring 4-2 adopts elastic material, such as silica gel;

The hardness of the positioning ring 4-1 is greater than that of the damping ring 4-2; the positioning ring 4-1 can be made of wear-resistant plastic such as polytetrafluoroethylene;

During work, the damping ring 4-2 and the positioning ring 4-1 are fixed, and the lower shaft 1-5 of the tapered tube assembly 1 rotates in the positioning ring 4-1; since the positioning ring 4-1 and the vibration damping ring 4-2 are in spherical contact, and the hardness of the positioning ring 4-1 is greater than that of the vibration damping ring 4-2, the positioning ring 4-1 can freely rotate relative to the vibration damping ring 4-2, thereby realizing the flexible connection between the lower shaft 1-5 of the tapered tube assembly and the support.

The positioning ring 4-1 of the present invention can function as a sliding bearing, and does not have a load-bearing effect on the lower shaft 1-5. Since the locating ring 4-1 is underwater during the working process, the present invention utilizes the self-lubricating property of the locating ring 4-1's own material on the one hand, and the lubricating property of water on the other hand, so it can ensure the free rotation of the lower shaft 1-5 while positioning the lower shaft 1-5 in the circumferential direction.

The present invention can play the role of centering through the spherical fit between the positioning ring 4-1 and the vibration damping ring 4-2, so the underwater positioning part 4 of the present invention can play the role of a standard bearing to ensure the stability of the tapered tube assembly 1 during rotation.

The tapered pipe of the present invention adopts the tapered pipe disclosed in the Chinese invention patent application document CN111256264A, which will not be repeated here.

Due to the strong cleaning effect of the present invention on the air, the water in the water tank 101 will enter impurities during use. In order to facilitate the cleaning of the water tank 101 and the replacement of new water, as a preferred embodiment, the base bracket 5 for positioning the lower end of the tapered pipe 1-1 can be fixedly connected with the air inlet piece 114 through a plurality of connecting rods 104 distributed along the circumference; out.

In addition, in order to prevent impurities in the water from blocking the water outlet 1-11 of the tapered pipe 1-1, as a preferred embodiment, a filter screen can be arranged below the water inlet of the tapered pipe 1-1; specifically, the filter screen can be fixedly arranged below the wing plate of the base support 5; at this time, the base 103 can be set below the base support 5, and the tapered pipe cover 102 can be set above the base support 5; inside;

The conical tube housing 102 is fixedly connected with the air inlet part 114 through the connecting rod 104; specifically, the upper end of the connecting rod 104 is fixedly connected to the bottom of the air inlet part 114, and the lower end of the connecting rod 104 is fixedly connected to the conical tube housing 102;

In the present invention, the conical tube cover 102 is fixedly connected with the air inlet 114 of the suspended conical tube assembly 1 through the connecting rod 104, and the lower shaft 1-5 of the conical tube assembly 1 is positioned in the base bracket 5, and the conical tube cover 102 is fixedly connected with the base bracket 5 through the base 103. Therefore, the present invention integrates the conical tube assembly 1, the lower base bracket 5 and the upper air inlet 114 into one body. As shown in FIG. When cleaning, the whole body above can be taken out from the water tank 101, and the impurities produced during the cleaning process will be deposited on the bottom of the water tank 101, so it is very convenient to clean and replace the water tank 101 with new water.

The connecting rod 104 of the present invention is used as a connecting piece between the injection molded parts (both the air inlet piece 114 and the tapered pipe cover 102 are injection molded pieces), and its material is metal or metal coating to ensure the firmness of the connection. Preferably, the material of the connecting rod 104 can be silver or copper, or silver or copper is used as a cladding layer, or an alloy containing silver or copper, so that the connecting rod 104 has a natural sterilization effect.

The inner diameter of the cover tube of the tapered tube outer cover 102 is greater than the outer diameter of the tapered tube 1-1, and an annular gap is formed between the cover tube of the tapered tube outer cover 102 and the tapered tube 1-1, so that the tapered tube 1-1 freely rotates in the tapered tube outer cover 102;

As a preferred embodiment, the height of the cover barrel of the tapered tube outer cover 102 is less than the height of the tapered pipe 1-1; the height of the cover barrel of the tapered tube outer cover 102 determines the height of the highest water level H in the water tank 101; the cover tube of the tapered tube outer cover 102 divides the water tank 101 into a spray area E2 and a water storage area E1, wherein the bottom of the water storage area E1 is used as a settlement area;

During use, the water level line in the water tank 101 should be lower than the upper edge of the cover tube of the tapered tube outer cover 102, and the cover tube of the tapered tube cover 102 can prevent water from entering the tapered tube 1-1 from the top of the filter screen, so that water can only enter the inner chamber of the tapered tube 1-1 from the water inlet at the bottom;

During the working process of the present invention, the tapered pipe 1-1 and the fan 113 are driven by the same motor. To make the tapered pipe 1-1 and the fan 113 rotate synchronously and stably, it is necessary to ensure that the tapered pipe 1-1 and the fan 113 are on the same axis. However, in order to reduce the manufacturing cost, the tapered pipe 1-1 and the fan 113 of the present invention use injection molded parts, and compared with machined parts, the precision of the injection molded parts is lower, so that the concentricity between the tapered pipe 1-1 and the fan 113 is difficult to meet the regulations. If a precise shaft coupling is used to realize the coaxial connection between the tapered pipe 1-1 and the fan 113, the cost of the machine will increase. For this reason, the present invention fixedly connects the fan 113 to the motor output shaft 3, and at the same time realizes the fixed connection between the motor output shaft 3 and the upper shaft 1-3 of the tapered tube assembly 1 through the elastic coupling 2-2, while the coaxiality between the upper shaft 1-3 and the lower shaft 1-5 of the tapered tube assembly 1 is fine-tuned through the centering function of the bearing sleeve 2-5 and the positioning ring 4-1. Coaxial connection between fans 113.

The airflow path formed by the present invention is formed by the rotation of the fan 113, the air guide ring 115, and the cone assembly 1, etc., so the speed of the fan 113 does not need to be too high, generally 1000-1500 rpm, which can meet the needs of air cleaning.

Industrial Applicability

The invention can clean the air so as to realize dust removal and purification, and also has a good effect on absorbing formaldehyde.

The invention can remove solid pollutants (PM2.5, PM10, pollen, etc.) in the air, and gaseous pollutants (formaldehyde, ammonia, etc.) that are easily soluble in water in the air, increase air humidity, and lower room temperature (similar to a water cooling fan).

Claims

An air cleaning device, characterized in that it comprises:

The upper casing (111), the top of the upper casing (111) is provided with an air outlet (F2); the upper casing (111) is fixed with a drive motor (112);

The fan (113) is arranged in the upper casing (111); the fan (113) is fixedly connected to the motor output shaft (3) of the drive motor (112);

Conical tube assembly (1), the upper shaft (1-3) of which is connected to the motor output shaft (3) through a coupling mechanism (2); the driving motor (112) can drive the fan (113) and the conical tube assembly (1) to rotate synchronously;

The water tank (101) is arranged under the upper casing (111); and

The air guide ring (115) is fixedly connected to the upper housing (111) through the air inlet (114); the air guide ring (115) is arranged on the top edge of the water tank (101); the air inlet member (114) has an axial extension (114-1), and the diameter of the axial extension (114-1) is smaller than the diameter of the water tank (101), thereby forming an air inlet (F1) between the upper housing (111) and the air guide ring (115) ).
The air cleaning device according to claim 1, characterized in that: the air guide ring (115) includes an inner ring (115-1) and an outer ring (115-2), the inner ring (115-1) is arranged inside the outer ring (115-2), and an annular cavity is formed between the inner ring (115-1) and the outer ring (115-2); there are a plurality of arc-shaped blades (115-3) distributed in the annular cavity along the circumferential direction, and the arc-shaped blades (11 5-3) Extending from the top of the annular cavity to the bottom of the annular cavity in the circumferential direction, the annular cavity is divided into multiple arc-shaped channels; the entrance of the arc-shaped channel faces the annular air inlet (F1) at the top of the air guide ring (115), and the outlet of the arc-shaped channel faces the inner wall of the water tank (101) at the bottom of the air guide ring (115).
The air cleaning device according to claim 1, characterized in that: the water outlet (1-11) of the tapered pipe (1-1) of the tapered pipe assembly (1) is set on the upper part of the tapered pipe (1-1); the lowest point of the water outlet (1-11) is used as the highest water level of the water tank (101); above the highest water level of the water tank (101) is used as the injection area (E2).
The air cleaning device according to claim 1, characterized in that: the coupling mechanism (2) includes an elastic coupling (2-2), the upper end of the elastic coupling (2-2) is connected to the motor output shaft (3) through the transition shaft (2-1), and the lower end of the elastic coupling (2-2) is connected to the upper shaft (1-3) of the tapered tube assembly (1); the upper shaft (1-3) of the tapered tube assembly (1) passes through the support, and the support passes through the support arm (2-7) The air inlet part 114 is fixedly connected; the support and suspension of the tapered pipe assembly (1) are realized through the support part.
The air cleaning device according to claim 1, characterized in that: the height of the inner end of the support arm (2-7) is greater than the height of the outer end.
The air cleaning device according to claim 1, characterized in that: the lower shaft (1-5) of the tapered tube assembly (1) is connected to the base bracket (5) through an underwater positioning piece (4); the underwater positioning piece (4) includes a positioning ring (4-1) and a vibration damping ring (4-2), the positioning ring (4-1) is arranged in the vibration damping ring (4-2), and the vibration damping ring (4-2) is fixedly connected to the base bracket (5); the lower shaft (1-5) of the tapered tube assembly (1) is movable Inside the positioning ring (4-1), the positioning ring (4-1) performs circumferential positioning on the lower shaft (1-5) of the tapered tube assembly (1); the base bracket (5) has a plurality of wing plates.
The air cleaning device according to claim 1, characterized in that: a base (103) is arranged below the base bracket (5), and a cone tube cover (102) is set above the base bracket (5); the cone tube cover (102) is fixedly connected to the base (103), and the base bracket (5) and the filter screen below it are fixed inside.
The air cleaning device according to claim 1, characterized in that: the tapered pipe cover (102) is fixedly connected with the air inlet (114) as a whole through a connecting rod (104).
A kind of air cleaning method is characterized in that, comprises the following steps:

The driving motor (112) drives the fan (113) and the tapered tube assembly (1) to rotate;

The fan (113) forms a negative pressure during the rotation process, and the negative pressure makes the outside air enter the water tank (101) obliquely downward along the multiple arc channels of the air guide ring (115) through the air inlet (F1); the airflow flows obliquely downward along the inner wall of the water tank (101) to the inside of the water tank (101), forming a first spiral airflow (I1) that rotates downward;

The tapered pipe (1-1) of the tapered pipe assembly (1) drives the water in the water tank (101) to move from bottom to top during the rotation process, and is thrown out through the water outlet of the tapered pipe (1-1); the water line thrown out from the tapered pipe (1-1) hits the inner wall of the water tank (101) in the spray area, and the inner wall of the water tank (101) crushes the water line to form water mist;

While the water is moving upwards, the rotation of the conical tube (1-1) drives the airflow around it to move upwards, forming a second spiral airflow (I2) that rotates upwards;

The first helical airflow (I1) passes through the injection area from top to bottom, and the second helical airflow (I2) passes through the injection area from bottom to top, and the airflow contacts the water line and water mist during the two passes through the injection area to realize air cleaning and/or humidification.
The air cleaning method according to claim 9, characterized in that: the diameter of the first helical airflow (I1) is determined by the diameter of the water tank (101); and/or, the diameter of the second helical airflow (I2) is determined by the diameter of the tapered pipe (1-1).