CN107261656B

CN107261656B - Air purifying device

Info

Publication number: CN107261656B
Application number: CN201710340023.0A
Authority: CN
Inventors: 罗瑞真
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-14
Filing date: 2014-04-14
Publication date: 2019-12-13
Anticipated expiration: 2034-04-14
Also published as: CN107261656A

Abstract

The utility model provides an air purification device, includes main air current subassembly and other air current subassembly, and first income wind gap and first air outlet are seted up to main air current subassembly, and negative pressure space and second air outlet are seted up to other air current subassembly, perhaps other air current subassembly and main air current subassembly form negative pressure space and second air outlet jointly. When the airflow is discharged from the first air outlet of the main airflow component, the air at the second air outlet of the side airflow component is drawn to flow, a venturi effect is generated, the negative pressure space generates negative pressure, and the air outside the side airflow component passes through the filter and is discharged from the second air outlet. The venturi effect is utilized to drive the gas to flow, so that the energy consumption of the air purification device can be reduced. When a plurality of filters with different wind resistances are used, a plurality of side airflow assemblies can be correspondingly arranged, and excessive wind pressure is prevented from being applied to all the filters for matching with the filter with the larger wind resistance, so that energy waste is avoided. Meanwhile, all gas entering the bypass airflow assembly passes through the filter, so that the purification efficiency is improved.

Description

air purifying device

The present application is a divisional application of an invention patent application having an application date 2014, 14/04, an application number 2014101494206, and an invention creation name of an air purifying device.

Technical Field

The invention relates to the technical field of air purification, in particular to an air purification device.

Background

The pollutants in the air mainly have two forms, one is particulate pollutants, such as dust, bacteria, mould and other substances with large shapes, the molecular structure of the pollutants is complex, and the pollutants are formed by combining a plurality of different substances or components and have the size of about one hundredth micron to hundreds of microns. The other is gaseous pollutant, such as odorous and volatile organic chemical, which has relatively simple chemical structure, consists of several chemical elements and is very small and only in angstrom to nanometer size.

The two types of pollutants in the air are treated by different filtering methods, and the traditional method is to Filter the air with pollutants by using Filter paper, even high-efficiency Filter paper (HEPA Filter), or to utilize electrostatic dust collection generated by high voltage or to discharge negative ions to make dust particles suspended in the air to be charged with negative charges and then to be gathered to a neutral or positive charge place. Active carbon, molecular sieve and zeolite are used as filtering materials, or ozone, oxidant and ultraviolet lamp are used to carry out oxidation catalytic decomposition on pollutants by matching with photocatalyst or different catalytic catalysts. Each of these purification technologies has characteristics and effectiveness, and a general air purification device often uses a plurality of air purification technologies for different pollutants. A common air purification device uses a plurality of filter elements (or filters) for different pollutants, and the plurality of filter elements (or filters) are generally arranged in parallel layer by layer and are only provided with an air extracting fan or a blower to drive an air flow to flow from upstream to downstream.

Different filters have different physical and chemical characteristics, some utilize a filtration mode, some utilize an adsorption mode, and some utilize an ionization mode. Wherein, some filters windage is great, and the general density of the great filter of windage is higher, has better filter effect, also has great holding power to the pollutant. In order to cooperate with a filter with a large wind resistance, a motor with a high torque is used as a fan, or even a backward curved blade type fan capable of overcoming the high wind resistance is used, so that air can flow through the filter and be purified. However, motors with higher torque tend to consume more power, and rearward curved blade fans can create noise that is difficult to extinguish.

in addition, when a general air purification device is operated, not all air entering the air purification device is filtered and purified. In general, a dummy position is left for the air cleaning device to be suitable for replacing the filter periodically. Moreover, since the filter cartridge needs to be replaced by an old filter and a new filter, the sizes of the filter and the housing of the air cleaning device inevitably have some unavoidable errors, which may cause a gap inside the air cleaning device. These voids or gaps present a problem of "air leakage". That is, the unpurified air passes over the gap between the housing and the filter and is discharged. Since these virtual positions or voids are very low in wind resistance relative to the filter, even very small, inconspicuous voids can severely cause a large portion of the air to escape past the high wind resistance filter from the void where there is no wind resistance. Therefore, the efficiency of air purification of the air purification device is low or the effect of air purification is lost, and the electric energy consumed by the fan is wasted.

disclosure of Invention

Accordingly, it is necessary to provide an air purification device, which can solve the problems of high energy consumption and low purification efficiency of the air purification device.

an air purification device comprises a main airflow component and a side airflow component;

the main airflow component is provided with a first air inlet and a first air outlet;

The bypass airflow component is provided with a negative pressure space and a second air outlet, or the bypass airflow component and the main airflow component form the negative pressure space and the second air outlet together; the second air outlet is communicated with the negative pressure space and the outside of the negative pressure space, and is close to the first air outlet;

The bypass airflow assembly comprises a filter, one side of the filter for outputting air is communicated with the negative pressure space, and one side of the filter for inputting air is communicated with the outside of the negative pressure space;

The outside of the negative pressure space comprises the outside space of the bypass airflow component communicated with one side of the filter for inputting the gas and the outside space of the bypass airflow component communicated with the second air outlet.

In one embodiment, the external space of the bypass airflow assembly communicated by the side of the filter for inputting the air and the external space of the bypass airflow assembly communicated by the second air outlet are in a common external environment.

In one embodiment, the external space of the bypass airflow assembly communicated with the side of the filter for inputting the air and the external space of the bypass airflow assembly communicated with the second air outlet are in different external environments. When the air purification device is applied, a wall is arranged in the external environment to separate the air purification device and the external environment and to be in different external environments; or the main airflow component and the side airflow component are separated and are in different external environments by utilizing the shapes or shell parts of the main airflow component and the side airflow component.

The first air outlet and the second air outlet open into a common external space, which is a space outside the air purification device.

In one embodiment, the first outlet and the second outlet form a total outlet of the air purification device.

In one embodiment, the air purification apparatus may further include at least one enclosure wall, and the enclosure wall is an enclosure wall that encloses the total air outlet.

In one embodiment, the enclosure wall is higher than the second outlet air.

in one embodiment, the enclosure wall is higher than the first outlet and the second outlet.

In one embodiment, the total air outlet is made gradually enlarged by the surrounding wall, the narrowest part of the surrounding wall is located at one end of the surrounding wall close to the first air outlet and the second air outlet, and the widest part of the surrounding wall is located at one end of the surrounding wall close to the outside space.

In one embodiment, the enclosure wall is an extension of the housing portion of the bypass airflow assembly.

in one embodiment, the enclosure wall is an extension of the housing portion of the primary airflow assembly.

in one embodiment, the main airflow assembly includes a first casing, the first air inlet is disposed at one end of the first casing, the first air outlet is disposed at the other end of the first casing, and the first casing is gradually tightened up near the first air outlet;

The bypass airflow assembly is positioned outside the main airflow assembly and further comprises a second shell; when the bypass airflow component is provided with the negative pressure space and the second air outlet, the filter is fixed on the second shell, and the negative pressure space is formed by the second shell and the filter; or when the main airflow component and the bypass airflow component jointly form the negative pressure space and the second air outlet, the filter is fixed between the second shell and the first shell, and the negative pressure space is formed by the first shell, the second shell and the filter.

The bypass airflow assembly is positioned outside the main airflow assembly, and the filter is fixed on the first shell; when the bypass airflow component is provided with the negative pressure space and the second air outlet, the negative pressure space is formed by the filter; or when the bypass airflow assembly and the main airflow assembly jointly form the negative pressure space and the second air outlet, the negative pressure space is formed by the filter and the first housing.

In one embodiment, the bypass airflow assembly surrounds the main airflow assembly, and the second outlet surrounds the first outlet.

In one embodiment, the main airflow assembly further includes a fan, and the fan is configured to drive an airflow from the first air inlet to the first air outlet;

Or the first air inlet is used for being connected with an external air power device, and the air power device is used for driving the air flow to flow from the first air inlet to the first air outlet.

in one embodiment, the main airflow assembly comprises a first housing, the bypass airflow assembly is disposed inside the first housing, and the bypass airflow assembly further comprises a second housing;

When the bypass airflow component is provided with the negative pressure space and the second air outlet, the second shell is provided with a second air inlet, and the second air outlet is arranged on the second shell;

Or when the main airflow component and the bypass airflow component jointly form the negative pressure space and the second air outlet, the second shell and the first shell jointly form a second air inlet, and the second air outlet is arranged between the second shell and the first shell;

the filter is arranged between the second air inlet and the second air outlet, or the filter is arranged at the second air inlet; one side of the filter outputting gas faces the second air outlet; one side of the filter for inputting gas is communicated with the inside or the outside of the first shell, or one side of one part of the filter for inputting gas is communicated with the inside of the first shell, and one side of the other part of the filter for inputting gas is communicated with the outside of the first shell.

In one embodiment, the first housing and the second housing are gradually tightened towards the first air outlet; the second air outlet is arranged at the position where the second shell gradually tightens towards the first air outlet.

In one embodiment, when the second air outlet is disposed between the second housing and the first housing;

the first shell and the second shell are gradually tightened towards the second air outlet.

In one embodiment, the bypass airflow assembly further comprises an adjusting mechanism, and the adjusting mechanism can adjustably cover the second air inlet in whole or in part.

In one embodiment, the primary airflow assembly further comprises a pre-cleaner disposed at the first air inlet.

In one embodiment, when the bypass airflow assembly is provided with the negative pressure space and the second air outlet, the bypass airflow assembly further comprises a second shell and a second air inlet structure; the second shell is hollow and annular, and an annular inner cavity is formed in the second shell;

The second shell comprises a first side wall and a second side wall which are arranged oppositely, and the second air outlet is a gap between the first side wall and the second side wall; the second air inlet structure is communicated with the inside of the second shell and the filter.

In one embodiment, the second side wall is close to the hollow position of the second shell, the main airflow assembly comprises a first shell, the first shell is in a hollow annular shape, and the first shell and the second side wall are of a coincident and integrated structure;

The first air outlet is an opening in the hollow position of the first shell, and the first air outlet is located on one side, close to the second air outlet, of the first shell.

In one embodiment, the second side wall is close to the hollow position of the second shell, the main airflow assembly comprises a first shell, the first shell is in a hollow annular shape, and the first shell and the first side wall are of a coincident and integrated structure;

in one embodiment, the primary airflow assembly further comprises a primary airflow concentrator disposed within the first housing;

The main airflow concentrator comprises an inner wall and an outer wall, the outer wall is sleeved outside the inner wall, and an airflow channel is arranged between the inner wall and the outer wall;

An opening at one end of the airflow channel is an air inlet, and an opening at the other end of the airflow channel is an air outlet; the air inlet faces the first air inlet, the air outlet is close to the second air outlet, and the area of the air inlet is larger than that of the air outlet.

In one embodiment, the second outlet and the outlet of the main air flow concentrator form a total outlet; the air purification device can further comprise at least one surrounding wall, and the surrounding wall is a surrounding wall surrounding the total air outlet.

In one embodiment, the enclosure wall is higher than the second outlet air.

In one embodiment, the cross-sectional area of the surrounding wall gradually expands, so that the total air outlet also gradually expands, the narrowest part of the surrounding wall is positioned at one end of the surrounding wall close to the first air outlet and the second air outlet, and the widest part of the surrounding wall is positioned at one end of the surrounding wall close to the outside space;

in one embodiment, the cross-sectional area of the enclosure wall is constant.

In one embodiment, the surrounding wall is an extension of the first housing or the second housing.

In one embodiment, the main airflow assembly comprises a first shell, a first air inlet structure and a fan, the first shell is in a hollow annular shape, the first shell and the second shell are arranged in parallel, and the first air inlet structure is communicated with the interior of the first shell and the fan; the first air outlet is arranged on the first shell, and the first shell is close to the first air outlet and gradually tightens up.

In one embodiment, the side airflow assemblies are arranged in parallel, the first side wall of each side airflow assembly is coincident with the second side wall of the adjacent side airflow assembly, and/or the second side wall of each side airflow assembly is coincident with the first side wall of the adjacent side airflow assembly.

also provided is an air purification device, comprising a bypass airflow component;

The bypass airflow component is provided with a negative pressure space and a second air outlet; the second air outlet is communicated with the negative pressure space and the outside of the negative pressure space;

above-mentioned air purification device, when the air current was discharged by the first air outlet of main air current subassembly, the gas of the second air outlet department of other air current subassembly was pull and is flowed, took place the venturi effect, and the negative pressure space produces the negative pressure, makes the outside gas of other air current subassembly pass through the filter to be discharged by the second air outlet. The venturi effect is utilized to drive the gas to flow, so that the energy consumption of the air purification device can be reduced. When a plurality of filters with different wind resistances are used, a plurality of side airflow assemblies can be correspondingly arranged, and excessive wind pressure is prevented from being applied to all the filters for matching with the filter with the larger wind resistance, so that energy waste is avoided. Meanwhile, all gas entering the bypass airflow assembly passes through the filter, so that the purification efficiency is improved.

in the air purification device, the main air flow assembly can be replaced by an external aerodynamic device.

drawings

FIG. 1 is a schematic view of an embodiment of an air purification apparatus;

FIG. 2 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 3 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 4 is a side view of the air purification apparatus shown in FIG. 3;

FIG. 5 is a schematic view of a filter of the air purification apparatus shown in FIG. 3;

FIG. 6 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 7 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 8 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 9 is a side view of the air purification apparatus shown in FIG. 8;

FIG. 10 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 11 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 12 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 13 is another schematic view of the air purification apparatus shown in FIG. 12;

FIG. 14 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 15 is a schematic view of an air cleaning apparatus according to still another embodiment;

FIG. 16 is a side view of the bypass airflow assembly of the air purification device of FIG. 15;

Fig. 17 is a schematic view of an air cleaning device according to still another embodiment.

Detailed Description

to facilitate an understanding of the present invention, an air purification apparatus will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the air cleaning apparatus are shown in the drawings. However, the air purification apparatus may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the air purification apparatus is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The air purification apparatus of embodiments may include different types of filters for purifying or filtering different contaminants, including particulate contaminants and/or gaseous contaminants, in the air. Air containing contaminants, air free of contaminants, air not purified by the filter, and air purified by the filter are all referred to as gases in the embodiments.

As shown in fig. 1, an embodiment of an air purification apparatus 100 includes a main airflow assembly 110 and a bypass airflow assembly 120. The main airflow assembly 110 has a first air inlet 1122 and a first air outlet 1124. The bypass airflow assembly 120 is provided with a negative pressure space and a second air outlet 1244, or the bypass airflow assembly 120 and the main airflow assembly 110 together form the negative pressure space and/or the second air outlet 1244. The second air outlet 1244 communicates the negative pressure space and the outside of the negative pressure space, and the second air outlet 1244 is close to the first air outlet 1124. The bypass airflow assembly 120 includes a filter 122, wherein a side of the filter 122 outputting the air communicates with the negative pressure space, and a side of the filter 122 inputting the air communicates with the outside of the negative pressure space. One or more main airflow assemblies 110 and one or more bypass airflow assemblies 120 may be provided, and one or more first air inlets 1122 and first air outlets 1124 provided in the main airflow assemblies 110, and one or more negative pressure spaces and second air outlets 1244 provided in the bypass airflow assemblies 120 may also be provided. The first outlet 1124 and the second outlet 1244 form a total outlet of the air purifying device 100.

In one embodiment, the air purification apparatus 100 further comprises an enclosure wall 1241, and the enclosure wall 1241 is an enclosure wall surrounding the total air outlet. The surrounding wall 1241 is higher than the first outlet 1124 and the second outlet 1244, the surrounding wall 1241 is gradually enlarged, so that the total outlet is also gradually enlarged, the narrowest portion of the surrounding wall 1241 is close to one end of the first outlet 1124 and the second outlet 1244, and the widest portion of the surrounding wall 1241 is close to one end of the first outlet towards the outside space.

In one embodiment, the enclosure 1241 is an extension of the housing portion of the bypass airflow assembly 120.

In one embodiment, the exterior of the negative pressure space includes the exterior of the bypass airflow assembly 120 communicated with the side of the filter 122 through which the gas is introduced, and the exterior of the bypass airflow assembly 120 communicated with the second outlet 1244. The external space of the bypass airflow module 120, which is communicated with the side where the air is input through the filter 122, and the external space of the bypass airflow module 120, which is communicated with the second air outlet 1244, may be in different external environments. When the air purification device 100 is applied, a wall is arranged in the external environment to separate the two and locate in different external environments; or the main airflow assembly 110 and the bypass airflow assembly 120 may be separated and located in different external environments by their shapes or housing portions. The first outlet 1124 and the second outlet 1244 open into a common external space, which is a space outside the air cleaning apparatus.

when the airflow is discharged from the first outlet 1124 of the main airflow component 110, the air at the second outlet 1244 of the bypass airflow component 120 is drawn to flow, so as to generate a venturi effect, and the negative pressure space generates a negative pressure, so that the air outside the bypass airflow component 120 passes through the filter 122 and is discharged from the second outlet 1244. The venturi effect is utilized to drive the air to flow, so that the energy consumption of the air purification device 100 can be reduced. When a plurality of filters 122 with different wind resistances are used, a plurality of bypass airflow assemblies 120 can be correspondingly arranged, so that excessive wind pressure is prevented from being applied to all the filters 122 for matching the filters 122 with larger wind resistances, and energy waste is avoided. At the same time, all of the gas entering the bypass flow assembly 120 passes through the filter 122, which improves the purification efficiency.

As shown in FIG. 1, in one embodiment, the air purification apparatus 100 includes a main airflow assembly 110 and a bypass airflow assembly 120. The main airflow assembly 110 includes a first housing 112 and a fan 114, a first air inlet 1122 is disposed at one end of the first housing 112, and a first air outlet 1124 is disposed at the other end of the first housing 112. The first housing 112 is gradually tightened up near the first air outlet 1124, which is beneficial to increase the flow speed of air at the first air outlet 1124, so as to generate a larger pressure difference. In one embodiment, a first chamber 1123 is formed inside the first casing 112, the first chamber 1123 is located between the first air inlet 1122 and the first air outlet 1124, and the fan 114 drives the airflow to enter the first air inlet 1122, pass through the first chamber 1123, and be exhausted from the first air outlet 1124.

The bypass airflow assembly 120 is located outside of the main airflow assembly 110, and the bypass airflow assembly 120 includes a filter 122 and a second housing 124. The filter 122 may be fixed to the second housing 124, and the second housing 124 and the filter 122 form a second chamber 1243, and the second chamber 1243 is a negative pressure space. Alternatively, as shown in fig. 1, the filter 122 is fixed between the second housing 124 and the first housing 112, and the second chamber 1243 is formed by the first housing 112, the second housing 124, and the filter 122. Forming the second chamber 1243 from the first housing 112, the second housing 124, and the filter 122 together may save material of the second housing 124 while forming the second chamber 1243 with a sufficiently large space.

The second housing 124 is provided with a second air inlet 1242 and a second air outlet 1244, the second air outlet 1244 is close to the first air outlet 1124, the second air outlet 1244 may be adjacent to the first air outlet 1124, and the second air outlet 1244 may also be located at an adjacent position slightly upstream of the first air outlet 1124. When the first outlet 1124 discharges the airflow, the air at the second outlet 1244 is drawn to flow, so as to generate a venturi effect, the second chamber 1243 generates a negative pressure, one side of the output air of the filter 122 faces the second outlet 1244 to communicate with the second chamber 1243, and one side of the input air of the filter 122 faces the second inlet 1242 to communicate with the outside of the bypass airflow component 120. The second chamber 1243 generates negative pressure, so that the air outside the bypass airflow module 120 enters the filter 122 through the second air inlet 1242 and is exhausted through the second air outlet 1244, and the filter 122 purifies all the air entering the bypass airflow system.

The second chamber 1243 needs to form a sufficient negative pressure to allow the air to pass through the filter 122 for the purpose of purifying the air, so that the filter 122 can be located as close to the second air inlet 1242 as possible, and the space of the second chamber 1243 can be enlarged as much as possible to form a sufficient negative pressure. Because the first housing 112 is gradually tightened near the first outlet 1124, the flow rate of the air at the first outlet 1124 is increased, and a greater pressure difference is generated, which provides a greater suction force to the other air outlets 1244 at the second outlet 1243, so that a greater negative pressure needs to be formed in the second chamber 1243.

The filter 122 may be a filter 122 with different principle, different model, and different wind resistance, and if the wind resistance of the filter 122 is large, the filter 122 may be curved, or the filter 122 may be inclined to increase the area of the filter 122, thereby reducing the wind resistance of the filter 122. If the wind resistance of the filter 122 is small, the area of the filter 122 may be reduced accordingly to ensure sufficient pressure. When the filters 122 with different wind resistances are used, a plurality of side airflow assemblies 120 can be correspondingly arranged, the filters 122 of the side airflow assemblies 120 can be arranged in parallel, and overlarge wind pressure is prevented from being applied to all the filters 122 for matching with the filters 122 with large wind resistances, so that energy waste is avoided.

The embodiment shown in fig. 2 differs from the embodiment shown in fig. 1 in that: the filter 122 is fixed to the first housing 112. The bypass airflow assembly 120 does not require the second housing 124, the filter 122 encloses a second chamber 1243, i.e. a negative pressure space, and the filter 122 is provided with a second air outlet 1244 for communicating the second chamber 1243 with the outside of the bypass airflow assembly 120. In other embodiments, the filter 122 and the first housing 112 may jointly define a second chamber 1243, a second air outlet 1244 communicating the second chamber 1243 with the outside of the bypass airflow assembly 120 is provided on the filter 122, or the second air outlet 1244 is formed by the filter 122 and the first housing 112 together.

in the embodiment shown in fig. 3-5, air purification apparatus 200 includes a main airflow assembly 210 and a bypass airflow assembly 220. The main airflow assembly 210 includes a first housing 212 and a main airflow concentrator 213, and an air outlet 2132 of the main airflow concentrator 213 is a first air outlet of the main airflow assembly 210. The main airflow concentrator 213 is disposed in the first housing 212, the main airflow concentrator 213 is gradually tightened up near the second outlet 2244, and the airflow at the first outlet is converted into airflow flowing at a high speed by the main airflow concentrator 213, so as to increase the negative pressure generated at the first outlet. The first housing 212 has a first chamber 2123 formed therein, and the first chamber 2123 is located between the first air inlet 2122 and the first air outlet. In another embodiment, the main air flow concentrator 213 can be omitted, and the first casing 212 is designed to be gradually tightened close to the first air outlet, so as to achieve the purpose of converting the air flow at the first air outlet into a high-speed air flow.

The first air inlet 2122 is connected to an external aerodynamic device, and the aerodynamic device is configured to drive an airflow from the first air inlet 2122 to the first air outlet. The fan of the main airflow assembly 210 shown in fig. 3 may be omitted if an external aerodynamic device is connected at the first air inlet 2122. The aerodynamic device may be an electrical device having a fan, such as an electric fan, a dehumidifier, a cooling fan, an air conditioner, a fan heater, and the like. The air power device can also be an air purifier, and after the air purification device 200 of the embodiment is additionally arranged, the original air purifier is optimized, and the air purification effect is further enhanced.

In the embodiment shown in FIG. 3, the second vent 2244 and the outlet 2132 of the main airflow concentrator form a total vent. The air purification apparatus 200 may further include at least one wall 2241 surrounding the main outlet, wherein the wall 2241 is higher than the first outlet and the second outlet 2244, and the cross-sectional area of the wall 2241 is constant.

Referring also to FIG. 4, a bypass airflow assembly 220 surrounds the exterior of the main airflow assembly 210, the bypass airflow assembly 220 including a filter 222 and a second housing 224. In one embodiment, the wall 2241 is an extension of the second housing 224. The filter 222 is fixed between the second housing 224 and the first housing 212, the second housing 224, and the filter 222 form a second chamber 2243. Referring also to fig. 5, the filter 222 is ring-shaped, and the filter 222 is square-shaped to fit the second housing 224 and the first housing 212. The second casing 224 is provided with a second air inlet 2242 and a second air outlet 2244, the second air outlet 2244 is close to the first air outlet, the second air outlet 2244 can be adjacent to the first air outlet, the second air outlet 2244 can also be located at an adjacent position slightly upstream of the first air outlet, and the second air outlet 2244 surrounds the first air outlet. When the first outlet discharges the airflow, the air at the second outlet 2244 is drawn to flow, the venturi effect occurs, the second chamber 2243 generates negative pressure, the output air side of the filter 222 faces the second outlet 2244 and communicates with the second chamber 2243, and the input air side of the filter 222 faces the second inlet 2242 and communicates with the outside of the bypass airflow module 220. The second chamber 2243 generates a negative pressure, so that the air outside the bypass flow module 220 enters the filter 222 through the second air inlet 2242 and is exhausted through the second air outlet 2244, and the filter 222 purifies all the air entering the bypass flow system.

As shown in FIG. 6, in one embodiment, the air purification apparatus 300 includes a main airflow assembly 310 and a bypass airflow assembly 320. The main air flow assembly 310 includes a first housing 312, a first air inlet 3122 disposed at one end of the first housing 312, and a first air outlet 3124 disposed at the other end of the first housing 312. In one embodiment, the first housing 312 has a first chamber 3123 formed therein, the first chamber 3123 is located between the first air inlet 3122 and the first air outlet 3124, and the air flow enters the first air inlet 3122, passes through the first chamber 3123, and is exhausted from the first air outlet 3124.

The bypass airflow assembly 320 is disposed inside the first housing 312. The bypass airflow assembly 320 includes a filter 322 and a second housing 324. The filter 322 may be fixed to the second housing 324, and the second housing 324 and the filter 322 form a second chamber 3243, and the second chamber 3243 is a negative pressure space. Alternatively, as shown in fig. 6, the filter 322 is fixed between the second housing 324 and the first housing 312, and the second chamber 3243 is formed by the first housing 312, the second housing 324, and the filter 322. The second housing 324 is provided with a second air inlet 3242, or the second housing 324 and the first housing 312 together form the second air inlet 3242. The second housing 324 is provided with a second air outlet 3244, or the second housing 324 and the first housing 312 together form the second air outlet 3244. The second air outlet port 3244 is adjacent to the first air outlet port 3124, the second air outlet port 3244 may be adjacent to the first air outlet port 3124, and the second air outlet port 3244 may be located slightly upstream of the first air outlet port 3124. The filter 322 is disposed at the second air inlet 3242, one side of the input air of the filter 322 is communicated with the inside of the first housing 312, and the air entering the bypass air flow assembly 320 is entirely from the first chamber 3123.

when the first air outlet 3124 discharges the air flow, the air at the second air outlet 3244 is drawn to flow, the venturi effect occurs, the second chamber 3243 generates a negative pressure, the side of the output air of the filter 322 faces the second air outlet 3244 and communicates with the second chamber 3243, and the side of the input air of the filter 322 faces the second air inlet 3242 and communicates with the outside of the bypass air flow assembly 320. The second chamber 3243 generates a negative pressure, so that the air outside the bypass air flow module 320 enters the filter 322 through the second air inlet 3242 and is exhausted through the second air outlet 3244, and the filter 322 purifies all the air entering the bypass air flow system.

In one embodiment, the first housing 312 and the second housing 324 are gradually tightened toward the first air outlet 3124 near the first air outlet 3124. The second outlet port 3244 is disposed at a position where the second housing 324 gradually converges toward the first outlet port 3124. The sectional area of the gradually tightened portion of the second housing 324 toward the first air outlet 3124 is smaller, the flow rate of the air is faster, and a larger negative pressure can be generated. In one embodiment, the first housing 312 and the second housing 324 are close to the second air outlet 3244, or gradually tightened toward the second air outlet 3244, so as to increase the negative pressure effect.

in one embodiment, the direction of the air inlet surface of the filter 322 may deviate from the air flowing direction in the first chamber 3123, and the air flow in the first chamber 3123 is prevented from directly blowing or colliding against the air inlet surface of the filter 322, thereby avoiding the wind resistance influence of the filter 322 and increasing the load of the blower.

In one embodiment, the second housing 324 forms a flow diverter disposed within the first chamber 3123 downstream of the first air inlet 3122 and upstream of the second air inlet 3242, the flow diverter substantially separating the first air outlet 3124 and the second air inlet 3242. The flow divider divides the gas entering the first chamber 3123 into at least two portions, wherein at least one portion of the gas does not pass through the second inlet port 3242 and only passes through the first outlet port 3124, thereby preventing the gas from being drawn into the second chamber 3243 due to the negative pressure of the second chamber 3243 when passing through the second inlet port 3242, and thus reducing the flow rate and velocity of the gas at the first outlet port 3124. In other embodiments, the flow splitter may not be part of the second housing 324, but rather a separately disposed structure.

In another embodiment, the side of the filter 322 for inputting air may also communicate with the outside of the first housing 312, and the air entering the bypass airflow module 320 may all come from the outside of the air purification apparatus 300. The gas entering the main air flow assembly 310 and the gas entering the bypass air flow assembly 320 are respectively from different air sources, so that the range of the air passing through the main filter 322 can be clearly limited, and the air purification can be performed more specifically.

in general, if the gas entering the first air inlet 3122 and the gas entering the second chamber 3243 come from the same or almost the same environment, i.e. the gas entering the second chamber 3243 comes from the outside, and both gases are pollutants with similar concentration or composition, the cleaning effect of this embodiment is not much different from that of the embodiment shown in fig. 6. However, in the following cases, the purifying effect of the present embodiment is significantly different from that of the embodiment shown in fig. 6. In the case where the gas entering the first inlet port 3122 and the gas entering the second chamber 3243 come from different environments, for example, the gas entering the first inlet port 3122 comes from a cleaner or purified gas, and the gas entering the second chamber 3243 comes from a gas containing a higher concentration of contaminants, the purification efficiency and purification effect are remarkably improved. Another situation is where the gases entering the first inlet 3122 and the second inlet 3242 are geographically distinct or separated.

Although, when the gas entering the first air inlet 3122 and the gas entering the second chamber 3243 come from the same or almost the same environment, the purification effect of the present embodiment is not much different from that of the embodiment shown in fig. 6. However, the embodiment shown in fig. 6 can save energy consumed by the fan motor when the fan of the main airflow module 310 is located at a position intermediate the first air inlet 3122 and the second air inlet 3242, or when the fan of the main airflow module 310 is located at an upstream position of the first air inlet 3122. The reason for saving energy is that the second air inlet 3242 is disposed in the first chamber 3123, and air can be directly drawn from the first chamber 3123, and the drawn air can assist the operation of the blower, thereby reducing the load of the motor of the blower. In contrast, when the fan is located at a position between the second air inlet 3242 and the first air outlet 3124, or the fan is located at a position downstream of the first air outlet 3124, the embodiment shown in fig. 6 may not save power consumption of the motor of the fan and may increase power consumption. As for the position of the fan, the position needs to be set according to actual needs. Preferably, the fan is located at a position intermediate the first air inlet 3122 and the second air inlet 3242.

The embodiment shown in fig. 7 differs from the embodiment shown in fig. 6 in that: one side of the filter 322 is connected to the inside of the first casing 312, and the other side of the filter 322 is connected to the outside of the first casing 312. The air entering the bypass airflow assembly 320 may come partially from the first chamber 3123 and partially from the exterior of the air purification apparatus 300. In one embodiment, the bypass flow assembly 320 can further include an adjustment mechanism that adjustably covers all or part of the second air inlet 3242. Thus, the gas entering the second chamber 3243 may be selected to be entirely from the inner first chamber 3123, or entirely from outside the air purification apparatus 300, or partially from the first chamber 3123 and partially from outside the air purification apparatus 300. The adjustment may be adaptively made according to the overall structure of the air cleaning device 300, and the concentrations of contaminants of the gas entering the first air inlet 3122 and the gas entering the second chamber 3243. If the gas entering the second chamber 3243 comes entirely from the first chamber 3123, the outside air from the air cleaning device 300 must be blocked or the outside air inlet closed or covered. In contrast, if the gas entering the second chamber 3243 comes entirely from the outside of the air cleaning device 300, the gas entering from the first chamber 3123 must be blocked, or the second air inlet 3242 must be closed or covered.

In one embodiment, the primary air flow assembly 310 may further include a pre-scrubber disposed at the first air inlet 3122. The embodiment shown in fig. 6 may also include a pre-scrubber 314. The pre-cleaner 314 is preferably a low wind resistance cleaner such as a high voltage electrostatic precipitator filter, a primary cleaning filter paper, or the like. The wind resistance of the pre-purifier 314 is generally required to be less than 120Pa, preferably less than 40 Pa.

As shown in fig. 8 and 9, in one embodiment, the air purification apparatus 400 includes a main airflow assembly 410 and a bypass airflow assembly 420. The bypass airflow assembly 420 includes a filter 422, a second housing 424, and a second air intake structure 426. The second housing 424 has a hollow ring shape, and the second housing 424 may have a ring shape of a circle, an ellipse, a square, or other shapes. The interior of the second housing 424 is provided with an annular interior cavity, which may be annular. The second housing 424 includes a first side wall 4244 and a second side wall 4246 which are oppositely arranged, the first side wall 4244 and the second side wall 4246 are smoothly curved towards the same annular side and gradually close, and the second side wall 4246 is close to the hollow position of the second housing 424. The second air outlet 4242 is a gap between the first side wall 4244 and the second side wall 4246, and the second air outlet 4242 may be an air outlet with a gradually narrowing shape or a jet-type air outlet.

In one embodiment, the air purification apparatus 400 may further include at least one surrounding wall 4241, and the surrounding wall 4241 is a surrounding wall surrounding the first outlet 4124 and the second outlet 4242. In one embodiment, the wall 4241 is an extension of the first sidewall 4244.

The hollow position of the second housing 424 is in the shape of the letter "O", the second air outlet 4242 is also in the shape of the letter "O", and the second air outlet 4242 surrounds the hollow position of the second housing 424. The second air intake structure 426 communicates with the interior of the second housing 424 and the filter 422. The shape of the second air intake structure 426 may be arbitrary, and the second air intake structure 426 may be formed by extending the second housing 424, and the shape of the second housing 424 does not limit the shape of the filter 422.

The main airflow assembly 410 drives the air to pass through the hollow position of the second casing 424, so that a negative pressure is formed at the second air outlet 4242, a negative pressure space with a negative pressure is formed by the annular inner cavity inside the second casing 424 and the inner cavity of the second air inlet structure 426, and the air outside the negative pressure space enters the second air inlet structure 426 through the filter 422, flows into the second casing 424, and is finally discharged from the second air outlet 4242.

In the present embodiment, the main airflow assembly 410 includes a first housing 412, the first housing 412 is provided with a first air inlet 4122 and a first air outlet 4124, the first housing 412 is in a hollow ring shape, and the first housing 412 and the second sidewall 4246 are overlapped and integrated. The first outlet 4124 is an opening of the first housing 412 at a hollow position, and the first outlet 4124 is located at a side of the first housing 412 close to the second outlet 4242.

When the air flow discharged from the second air outlet 4242 is discharged around the hollow position of the second housing 424, a coanda effect is caused, the air flow outside the air purification apparatus 400, namely, the air flow near the hollow annular first housing 412 or the second housing 424, is pulled to follow the air flow discharged from the second air outlet 4242, the flow rate of the air is increased, and the air flow discharged from the second air outlet 4242, the air flow discharged from the first air outlet 4124 and the air flow outside the air purification apparatus 400 pass through the hollow position together.

referring also to FIG. 10, in one embodiment, the primary air flow assembly 410 further includes a primary air flow concentrator 414 and a fan 416, the primary air flow concentrator 414 being disposed within the first enclosure 412, and a portion of the primary air flow concentrator 414 may extend out of the first enclosure 412. The primary air flow concentrator 414 includes an inner wall 4142 and an outer wall 4144, the outer wall 4144 being disposed about the inner wall 4142 and the outer wall 4144 having an air flow path therebetween. The opening at one end of the airflow passage is an air inlet 4146 and the opening at the other end of the airflow passage is an air outlet 4148. The air inlet 4146 faces the first air inlet 4122, the air outlet 4148 is close to the second air outlet 4242, and the area of the air inlet 4146 is larger than that of the air outlet 4148. The fan 416 is disposed at the first air inlet 4122, and provides an air flow into the first housing 412, and the air flow enters the air inlet 4146 of the main air flow concentrator 414, is concentrated in the main air flow concentrator 414, is converted into a high-speed air flow, and is discharged through the air outlet 4148. The main air flow concentrator 414 accelerates the flow rate of the air flow at the second air outlet 4242, increases the negative pressure of the negative pressure space, so that the air outside the negative pressure space can enter the second air intake structure 426 through the filter 422, flow into the second casing 424, and finally be discharged from the second air outlet 4242.

In one embodiment, the second outlet 4242 and the outlet 4148 of the primary air flow concentrator 414 form a total outlet. The air purification apparatus 400 may further comprise at least one enclosure wall 4241, and the enclosure wall 4241 is an enclosure wall surrounding the total outlet. In one embodiment, the enclosure wall 4241 is higher than the second side wall 4246 at the second outlet port 4242. In one embodiment, the enclosure wall 4241 is above the outlet 4148 of the primary air flow concentrator 414 and the second outlet 4242. In one embodiment, the wall 4241 is an extension of the first sidewall 4244.

As shown in FIG. 11, in one embodiment, the air purification apparatus 500 includes a main airflow assembly 510 and a bypass airflow assembly 520. The bypass airflow assembly 520 includes a filter 522, a second housing 524, and a second air intake structure 526. The second casing 524 is a hollow ring shape, and the second casing 524 may be a ring shape having a circular, oval, square, or other shape. The interior of the second housing 524 is provided with an annular interior cavity, which may be annular. The second casing 524 includes a first sidewall 5244 and a second sidewall 5246 that are oppositely disposed, the first sidewall 5244 and the second sidewall 5246 are smoothly curved and gradually close to each other toward the same side of the ring shape, and the second sidewall 5246 is close to the hollow position of the second casing 524.

The second air outlet 5242 is a gap between the first sidewall 5244 and the second sidewall 5246, and the second air outlet 5242 can be a gradually narrowing air outlet or a spray-type air outlet. Near the second outlet 5242, the second sidewall 5246 can be taller or longer than the first sidewall 5244. In one embodiment, the first sidewall 5244 is adjacent to the main airflow assembly 510, and the first housing 512 and the first sidewall 5244 are coincident and integral structures. In one embodiment, the second sidewall 5246 is longer than the first sidewall 5244, and the second sidewall 5246 surrounds the second outlet 5242 and the first outlet 5142.

the hollow position of the second housing 524 is in the shape of the letter "O", the second outlet 5242 is also in the shape of the letter "O", and the second outlet 5242 surrounds the hollow position of the second housing 524. The second air intake structure 526 communicates the interior of the second housing 524 with the filter 522. The shape of the second air inlet structure 526 may be arbitrary, and the second air inlet structure 526 may be formed by extending the second housing 524, and the shape of the second housing 524 does not limit the shape of the filter 522.

The main airflow assembly 510 drives the air to pass through the hollow position of the second casing 524, so that a negative pressure is formed at the second air outlet 5242, the annular inner cavity inside the second casing 524 and the inner cavity of the second air inlet structure 526 form a negative pressure space with a negative pressure, and the air outside the negative pressure space can enter the second air inlet structure 526 through the filter 522, flow into the second casing 524, and finally be discharged from the second air outlet 5242.

In this embodiment, the main air flow assembly 510 includes a first casing 512, a first air intake structure 514 and a fan 516, the first casing 512 is in a hollow ring shape, the first casing 512 and a second casing 524 are arranged in parallel, and the first air intake structure 514 communicates with the inside of the first casing 512 and the fan 516. The first air inlet 5122 is disposed on the first air inlet structure 514, the first air outlet 5124 is disposed on the first shell 512, and the first shell 512 is gradually tightened up near the first air outlet 5124. The first outlet 5124 surrounds or encircles part or all of the second outlet 5242, and the first outlet 5124 is close to the second outlet 5242. The fan 516 drives the air in the first housing 512 to be exhausted from the first air outlet 5124, so that the air at the position of the second air outlet 5242 is pulled by the airflow exhausted from the first air outlet 5124 to flow, and is exhausted from the second housing 524 through the second air outlet 5242, so that the negative pressure is generated in the negative pressure space, the air to be purified is sucked into the filter 522, and the purified air passes through the second air inlet structure 526 and the second housing 524 and is exhausted through the second air outlet 5242.

the first housing 512 near the second outlet 5242 is a smooth curved surface, and when the air is discharged from the first outlet 5124 and the second outlet 5242, the discharged air will pass through the curved surface, and the discharged air will drive the air near the air purification apparatus 500 to flow along the curved surface. When the air flow discharged from the second outlet 5242 is discharged around the hollow position of the second housing 524, a coanda effect is caused to pull the air outside the air purification apparatus 500, i.e., the air near the second housing 524 in the shape of a hollow ring, to flow along with the second side wall 5246 and the hollow inner wall of the first housing 512, so as to increase the flow rate of the air, and the air flow discharged from the second outlet 5242, the air flow discharged from the first outlet 5124, and the air outside the air purification apparatus 500 (near the second housing 524 in the shape of a hollow ring) pass through the hollow position. In FIG. 11, the arrows within the first housing 512 indicate the direction of movement of the airflow driven by the primary airflow assembly 510. The arrows in the second housing 524 show the direction of movement of the airflow driven by the bypass airflow assembly 520. The hollow arrow indicates the direction of the gas flow outside the air purifying device 500 by the coanda effect. In one embodiment, the second outlets 5242 are evenly distributed around the hollow position, when the airflow is drawn from the second outlets 5242 and discharged, a better and more even negative pressure can be generated in the second housing 524, and the negative pressure effect extends to the second air inlet structure 526, so that the external air can effectively enter the filter 522 for purification.

Referring also to fig. 12 and 13, in one embodiment, the bypass airflow assemblies 520 are two in a side-by-side arrangement, with the first sidewalls 5244 of a bypass airflow assembly 520 coinciding with the second sidewalls 5246 of an adjacent bypass airflow assembly 520. In other embodiments, the bypass airflow assemblies 520 may be a plurality of side-by-side arrangements, with the first sidewall 5244 of a bypass airflow assembly 520 being coincident with the second sidewall 5246 of an adjacent bypass airflow assembly 520, and/or the second sidewall 5246 of a bypass airflow assembly 520 being coincident with the first sidewall 5244 of an adjacent bypass airflow assembly 520.

Different filters 522 may be provided in different bypass flow assemblies 520 to purify different types and concentrations of contaminants. The air passing through the filters 522 of the different bypass airflow assemblies 520 can respectively originate from different air sources, and the air inlet positions of the bypass airflow assemblies 520 limit the range of the air passing through the filters 522, so that the air can be purified more specifically. The air inlet position of the bypass airflow assembly 520 can be flexibly adjusted to different positions manually or electrically according to the requirement of air purification of the on-site environment or the change of the concentration or source of pollutants. In one embodiment, the second air inlet structure 526 may be made of flexible material and structure, and the second air inlet structure 526 may be tubular, and the second air inlet structure 526 may be lengthened or shortened or flexibly adjusted.

The first housing 512 near the second outlet 5242 is a smooth curved surface, and when the air is discharged from the first outlet 5124 and the second outlet 5242, the discharged air will pass through the curved surface, and the discharged air will drive the air near the air purification apparatus 500 to flow along the curved surface. When the first outlet 5124 and the second outlet 5242 flow out, a coanda effect is caused to draw the air near the air purification apparatus 500 to follow the air flowing out from the first outlet 5124 and the second outlet 5242 to pass through the hollow position. As shown in fig. 13, the first outlet 5124 surrounds or encircles the plurality of second outlets 5242, and the main airflow component 510 can drive the plurality of bypass airflow components 520 at the same time. In this embodiment, the main airflow assembly 510 and the plurality of side airflow assemblies 520 are disposed in parallel, and the main airflow assembly 510 is located at one end of the parallel arrangement, in other embodiments, the main airflow assembly 510 may be sandwiched between the plurality of side airflow assemblies 520.

The first outlet 5124 and the second outlet 5242 form a total outlet of the air purification apparatus 500. The air purification apparatus 500 may further include at least one enclosure wall 5241, and the enclosure wall 5241 is an enclosure wall surrounding the total outlet. In one embodiment, the enclosure wall 5241 is an extension of the housing portion of the bypass flow assembly 520. As shown in fig. 12, the wall 5241 is an extension of the second sidewall of the outermost bypass airflow assembly 520. Referring also to FIG. 12, the arrows within the first housing 512 indicate the direction of movement of the airflow driven by the primary airflow assembly 510. The arrows in the second housing 524 show the direction of movement of the airflow driven by the bypass airflow assembly 520. The arrows and the dotted arrows in the hollow position show the direction of the gas flow outside the air purifying device 500 driven by the coanda effect.

As shown in FIG. 14, in one embodiment, the air purification apparatus 600 includes a primary airflow assembly 610 and a secondary airflow assembly 620. Primary air flow assembly 610 includes a first housing 612, a first air intake structure 614, and a fan 616. The first housing 612 is hollow and annular, and the interior of the first housing 612 is provided with an annular inner cavity, which may be annular. The first housing 612 includes a first sidewall 6124 and a second sidewall 6126 disposed opposite to each other, the first sidewall 6124 and the second sidewall 6126 are smoothly curved toward the same side of the ring shape and gradually approach each other, and the second sidewall 6126 is close to the hollow position of the first housing 612. The first air inlet 6122 is disposed on the first air inlet structure 614, the first air outlet 6128 is a gap between the first sidewall 6124 and the second sidewall 6126, and the first air outlet 6128 may be an air outlet gradually narrowing in shape, or a jet-type air outlet. The first air inlet 6122 is an opening at the end of the first air inlet structure 614, and the fan 616 is located at the first air inlet 6122 or in the first air inlet structure 614.

the hollow position of the first housing 612 is in the shape of the letter "O", the first air outlet 6128 is also in the shape of the letter "O", and the first air outlet 6128 surrounds the hollow position of the first housing 612. The first air intake structure 614 communicates the inside of the first housing 612 with the blower 616. The shape of the first air inlet structure 614 may be arbitrary, the first air inlet structure 614 may be formed by extending the first housing 612, and the shape of the first housing 612 does not limit the specification of the fan 616.

the bypass airflow assembly 620 includes a second housing 622, a second air intake structure 624 and a filter 626, wherein the second housing 622 is hollow and annular, the first housing 612 and the second housing 622 are arranged in parallel, and the second air intake structure 624 is communicated with the interior of the second housing 622 and the filter 626. The second air outlet 6224 is disposed on the second housing 622, and the second housing 622 is gradually tightened close to the second air outlet 6224. The second air outlet 6224 surrounds or encircles part or all of the first air outlet 6128, and the second air outlet 6224 is close to the first air outlet 6128. The fan 616 drives the gas in the first housing 612 to be exhausted from the first air outlet 6128, so that the gas at the position of the second air outlet 6224 is pulled by the airflow exhausted from the first air outlet 6128 to flow, and is exhausted from the second housing 622 through the second air outlet 6224, so that the negative pressure is generated in the negative pressure space, the gas to be purified is sucked into the filter 626, and the purified gas passes through the second air inlet structure 624 and the second housing 622 and is exhausted through the second air outlet 6224.

the first outlet 6128 and the second outlet 6224 form a total outlet of the air purification apparatus 600. The air purification apparatus 600 may further include at least one enclosure wall 6121, where the enclosure wall 6121 is an enclosure wall surrounding the total air outlet. In one embodiment, the wall 6121 is an extension of a portion of the housing of the main flow device 610, as shown in FIG. 14, the wall 6121 is an extension of the second sidewall 6126 of the main flow device 610. The first housing 612 near the second air outlet 6224 is a smooth curved surface, and when the air is exhausted from the first air outlet 6128 and the second air outlet 6224, the exhausted air will also drive the air near the air purification apparatus 600 to flow through the curved surface. When the airflow discharged from the first air outlet 6128 and the airflow discharged from the second air outlet 6224 are discharged around the hollow position of the first housing 612, a coanda effect is caused, and the airflow outside the air purification apparatus 600, namely, the airflow near the hollow annular first housing 612, is pulled to follow the airflow discharged from the first air outlet 6128 and the airflow discharged from the second air outlet 6224, so that the flow rate of the air is increased. The air flow discharged from the first air outlet 6128, the air flow discharged from the second air outlet 6224, and the air outside the air cleaning apparatus 600 (near the hollow annular first housing 612) are caused to pass through the hollow position.

In one embodiment, side airflow assemblies 620 may be provided in a plurality in a side-by-side arrangement, with first sidewall 6124 of side airflow assembly 620 coinciding with second sidewall 6126 of an adjacent side airflow assembly 620, and/or second sidewall 6126 of side airflow assembly 620 coinciding with first sidewall 6124 of an adjacent side airflow assembly 620. Different filters 626 may be provided in different bypass flow assemblies 620 to purify different types and concentrations of contaminants. The air passing through the filters 626 of the different bypass airflow assemblies 620 can respectively originate from different air sources, and the air inlet positions of the bypass airflow assemblies 620 define the range of the air passing through the filters 626, so that the air can be purified more specifically. The position of the air intake of the bypass airflow assembly 620 can be flexibly adjusted to different positions manually or electrically according to the requirement of air purification of the on-site environment or the change of the concentration or source of pollutants. In one embodiment, the second air inlet structure 624 may be made of flexible material and structure, and the second air inlet structure 624 may be tubular, and the second air inlet structure 624 may be extended or shortened or flexibly moved. The main airflow assembly 610 can drive a plurality of side airflow assemblies 620 simultaneously, the main airflow assembly 610 and the side airflow assemblies 620 are arranged in parallel, and the main airflow assembly 610 can be located at one end of the side airflow assemblies or can be clamped between the side airflow assemblies 620.

In combination with the above embodiments, the inventive concept of the present application is to break through the design concept of the traditional filter with one layer of parallel filters, intentionally cause the "air leakage" effect, and convert the "air leakage" effect into an air outlet with venturi effect, so that the air purification device of the present embodiment can multiply the air flow, and can still effectively operate even if a motor with lower torque is used to drive the fan or a non-backward curved-blade fan is used. The gas with pollutants can effectively pass through the filter with higher wind resistance, thereby being effectively purified, and simultaneously, the problems of power consumption and noise caused by the motor with higher torque can be reduced.

The air purification device or the bypass airflow component in the air purification device of the embodiment can be optionally matched with an external air power device for use, the air power device can comprise fans of motors with different torques, and the air power device can be an electric fan, a dehumidifier, a cooling fan, an air conditioner, a fan heater and the like. The air purification device of the embodiment can enable the air power device to have the function of purifying air when in operation, and the wind resistance of the filter does not influence the load of a fan motor of the air power device. In one embodiment, the shape, size, thickness and other specifications of the air purification device can be standard specifications, and the air purification device is not specially designed to be matched with different types of air power devices to produce air purification devices and/or filters with different types and shapes.

the Air cleaning apparatus of the present embodiment may be used in combination with a bladeless fan, an Air multiplier, and an Air Amplifier (Air Amplifier). Taking the bladeless fan as an example, the air purification device is arranged at the air outlet of the bladeless fan, so that when the bladeless fan runs, air can be purified simultaneously, no extra energy is needed, the load of a motor of the bladeless fan cannot be increased, and the air flow of the bladeless fan cannot be weakened. On the contrary, the bladeless fan and the Air cleaning device of the embodiment generate a synergistic effect, the Air flow of the bladeless fan increases the flow Rate of the Air entering the filter, indirectly increases the ventilation times, and increases the Clean Air output Rate (Clean Air Delivery Rate). The bladeless fan corresponds to the main airflow assembly in the present embodiment.

Taking the air amplifier as an example, the air purifying device is arranged at the air outlet of the air amplifier, so that the air amplifier has the function of air purification. However, this additional environmental improvement effect does not weaken the air flow pressure within the housing of the air amplifier, nor does it alter the exterior shape of the hollow circular housing of the air amplifier, and the coanda effect does not disappear. The air purifying device and the air amplifier are combined for use, no extra energy is consumed, the load of a motor of the air amplifier is not increased, the air flow of the air amplifier is not weakened, and the air amplifier can be matched with filters of different types and thicknesses at will, so that the function of purifying air is increased.

the common air amplifier is different from the traditional electric devices including fans, such as an electric fan, a dehumidifier, a cooling fan, an air conditioner, a fan heater and the like, and can be converted into an air filtering device by adding a filter. The reason is that the air amplifier mainly depends on two air flow paths to achieve the ventilation effect, one path is the air with high pressure brought by the high-torque and high-pressure motor, the air flow path flows in the shell, if a filter is arranged on the air flow path, the pressure of the air flowing in the shell is weakened, and the air with low pressure is sent out from the venturi nozzle, so that the effect of pulling the surrounding air cannot be achieved. The other air flow path is a wall attachment effect generated by the shape of the hollow circular shell, so as to drive the surrounding air to flow through the hollow shell, if a filter is added on the air flow path, the shape of the hollow circular shell is changed, the wall attachment effect disappears due to the change of the shape, and the surrounding air cannot be pulled to flow. The embodiment shown in figures 11 to 14 overcomes the technical difficulties by providing a bypass air flow assembly alongside the air amplifier, allowing the air amplifier to be combined with a filter.

In the above embodiment, the air entering the main air flow assembly and the air entering the bypass air flow assembly can respectively originate from different air sources, and the range of the air passing through the main filter can be defined according to the position of the second air inlet, so that the air purification can be performed more effectively. The second air inlet can be adjusted to different positions according to the requirement of on-site environmental air purification or the change of the concentration or source of pollutants.

in the air purification device of this embodiment, if necessary, the air flow output from the first outlet and the second outlet may be further filtered, and an external filter may be connected or attached to an external space of the air purification device. In one embodiment, in order to avoid the wind resistance of the external filter causing positive wind pressure, block the air flow output by the first air outlet and the second air outlet, and weaken the negative pressure of the negative pressure space, when the external filter is added, an additional air exhauster or air blower can be arranged at one or more of the following positions: (1) at a location downstream of the outer filter. (2) The upstream position of the external filter and the downstream positions of the first air outlet and the second air outlet. An additional suction fan or blower is provided to assist the airflow through the external filter while preventing the space between the first and/or second outlet and the external filter from creating a greater pressure than the first and/or second chamber and thereby reducing the negative pressure in the negative pressure space.

In the air purifying device of this embodiment, the air purified by the filter is the air flow entering the bypass airflow assembly, but not the air flow entering the main airflow assembly, and the air in the main airflow assembly can be generated by the fan. Unlike the conventional art, the polluted air does not flow through the blower, and the motor of the blower does not function as a filter for coping with the air having a high wind resistance. Therefore, the fan or the motor is protected, the service life of the air purification device is prolonged, the air purification device cannot be polluted by air containing pollutants, and the air purification device cannot be damaged due to long-term handling of a high-load filter.

In the above embodiment, the first casing is close to the first air outlet and gradually tightens up, which is beneficial to improving the flowing speed of the air at the first air outlet, and further generates a larger negative pressure. The principle is as follows: at the narrowest point, the dynamic pressure (velocity head) of the airflow output by the first air outlet reaches the maximum value, and the static pressure (resting pressure) reaches the minimum value. The speed of the airflow output by the first air outlet is increased due to the change of the inrush cross section area, the whole inrush current can undergo the reduction process of the first air outlet at the same time, and the pressure is reduced at the same time. Thereby generating a pressure difference which provides an external suction force for the air at the second air outlet, thereby generating negative pressure in the negative pressure space. Therefore, if the first air outlet is gradually tightened, the negative pressure space can generate larger negative pressure. The principle of the main air flow concentrators 213 and 414 in the above-described embodiments is the same.

In the above embodiment, the total air outlet of the air purification apparatus further includes an enclosure wall, which is an enclosure wall and encloses the first air outlet and the second air outlet, or the total air outlet formed by the second air outlet and the main airflow concentrator. Preferably, the enclosure wall is higher than the first air outlet and the second air outlet.

When the first air outlet outputs high-speed airflow to generate pressure difference, the surrounding wall can concentrate the pressure difference, and then a stronger external suction force is generated from the second air outlet. Otherwise, part of the pressure difference may be sacrificed to draw the air flow slightly outside the second air outlet, so as to reduce the external suction force inside the second air outlet and weaken the negative pressure effect.

The cross-sectional area of the enclosure wall may be constant or gradually enlarged, and if the cross-sectional area of the enclosure wall is gradually enlarged, the narrowest part of the enclosure wall is close to one end of the first air outlet and the second air outlet, and the widest part of the enclosure wall is close to one end of the external space, because the maximum pressure is at the narrowest part of the enclosure wall. The enclosure wall may be an extension of the housing portion of the main airflow bypass assembly or an extension of the housing portion of the bypass airflow assembly.

The principle by which the embodiments shown in fig. 11 to 14 can produce the coanda effect is as follows:

The first shell body close to the second air outlet is a smooth curved surface, so that the air discharged from the first air outlet and the second air outlet can flow along the curved surface due to the wall attachment effect. Since the streamline of the discharged air is bent, the pressure (i.e., atmospheric pressure) of the outside of the discharged air is greater than the pressure at the boundary between the inner side of the discharged air and the curved surface, and the discharged air flows along the curved wall.

the coanda effect brings the advantage that the coanda effect pulls the air around the first air outlet and the second air outlet, which is outside the air cleaning device, to follow the air exhausted from the air cleaning device. Compared with a device without the wall attachment effect, the air purifier can achieve a better ventilation effect, increases the opposite and multi-directional convection of air, further assists in mixing purified air and air which is not purified, and enables the air quality of the whole space to be more even, and the effect cannot be achieved by using a common fan as an air power device.

Because the opposite and multi-directional convection of the air at the first air outlet and the second air outlet is increased, the purified air is not gathered or accumulated near the air purification device, but is sent to a position far away from the air purification device through the opposite and multi-directional air convection. The air with higher pollutant concentration far away from the air purification device is not only passively and slowly diffused to the vicinity of the air purification device along with the pollutant concentration gradient, but is actively brought to the vicinity of the air purification device by the opposite and multi-directional convection air so as to be purified.

In one embodiment, the air purifier may further include a flow guider, the flow guider is disposed in the first housing, and when the air is driven from upstream to downstream in the air purifier, the flow guider guides the air to change the air from turbulent flow to laminar flow, and the air is concentrated to the first air outlet. Further, the flow guider can be a plane flow guiding sheet or a group of plane flow guiding sheets or a honeycomb flow guiding structure, and the flow guider can also be obliquely arranged in the first shell. Furthermore, the fluid director can adopt a high voltage as a dust collector for electrostatic dust collection, and when the fluid director conducts air guidance, the fluid director can also play a role in air purification so as to separate and adsorb particulate pollutants in the air.

In the above embodiments, the filter may be a high-voltage electrostatic precipitator, a negative ion generator, an ozone generator, an oxidant generator, a filter element comprising activated carbon, a photocatalytic material or molecular sieve, a zeolite material, or a mixture of any shape and any material in any proportion mixed with one or more of the above types. Further, the filter is preferably a filter with high wind resistance, such as a filter with a wind resistance value of 40Pa or more. The filter may also be a set of hybrid filters with different functional filters.

in the above embodiment, the first air outlet and/or the second air outlet may further include a movable block, and the size of the first air outlet and/or the size of the second air outlet may be adjusted by adjusting the angle and the orientation of the movable block, so as to further adjust the air speed at the first air outlet, increase the air speed at the first air outlet to increase the negative pressure in the negative pressure region, and enable more air to enter the filter to be purified. In addition, the speed of the air passing through the filter can also be regulated by this method.

In the above embodiment, the air purification apparatus may further include a central processor, and the central processor may be configured to automatically control the main airflow component and the bypass airflow component.

In the above embodiments, the air purification apparatus may further comprise one or more environmental sensors for measuring at least one of temperature, humidity, volatile organic compounds, formaldehyde, carbon dioxide, carbon monoxide, dust, ozone, nitrogen oxides, bacteria, radon gas, wind speed, wind current, air pressure, ambient light level, and sound. The electronic automatic adjustment can be carried out by a computer program implanted in the central processing unit in advance, and the electronic automatic adjustment can be judged according to data detected by the environment sensor.

In the above embodiments, the air purification apparatus may further include a valve switch, the valve switch may be connected to other positions of the air purification apparatus through a hinge and a motor, and the hinge and the motor may cover all or part of the filter in cooperation with the valve switch, so as to control the flow rate and the flow rate of the air flow entering the filter. In one embodiment, the trap and filter may be combined into the same component, the trap filter, which may be opened or closed to control the flow and rate of the gas stream entering the filter.

In the above embodiments, the main airflow assembly may be replaced by an aerodynamic device as the main airflow assembly. The air inlet of the air power device is defined as a first air inlet, the air outlet of the air power device is defined as a first air outlet, and the second air outlet is close to the first air outlet. Further, in an embodiment, the air purification apparatus may further include a main air flow concentrator, and the main air flow concentrator is disposed between the aerodynamic device and the bypass airflow assembly. The primary air flow concentrator may include an inner wall and an outer wall, the outer wall being disposed about the inner wall with an air flow passage therebetween. The opening at one end of the airflow channel is an air inlet, and the opening at the other end of the airflow channel is an air outlet. The air inlet faces the first air inlet, the air outlet is close to the second air outlet, and the area of the air inlet is larger than that of the air outlet. The main air flow concentrator is gradually tightened up near the air outlet, the second air outlet can be adjacent to the air outlet of the main air flow concentrator, and the second air outlet can also be located at an adjacent position slightly upstream of the air outlet of the main air flow concentrator.

In this embodiment, since the aerodynamic device is used as the main airflow assembly, the aerodynamic device may be any device having a fan, and the air outlet of the aerodynamic device is not generally gradually tightened, and the airflow may be concentrated by adding the main airflow concentrator. Of course, even if the main air flow concentrator is not provided, the bypass air flow assembly can be used as an air purification device by matching with the aerodynamic device, but the air outlet of the general aerodynamic device is not in a gradually tightening shape, so the air purification effect is not obvious as that of the aerodynamic device comprising the main air flow concentrator.

In one embodiment, the main airflow concentrator is disposed outside the first housing of the main airflow assembly and between the first housing and the bypass airflow assembly. The air inlet of the main air flow concentrator faces the first air outlet, namely the air outlet of the aerodynamic device, the air outlet of the output air of the main air flow concentrator is gradually tightened, the second air outlet is close to the air outlet of the output air of the main air flow concentrator, namely the second air outlet is close to the air outlet of the main air flow concentrator, the second air outlet can be adjacent to the air outlet of the main air flow concentrator, and the second air outlet can also be located at an adjacent position slightly upstream of the air outlet of the main air flow concentrator. In this embodiment, the first casing is not required to be designed to be gradually tightened up near the first air outlet, the air flow at the first air outlet enters the main air flow concentrator and is converted into a high-speed flowing air flow through rectification, the negative pressure generated at the air outlet of the main air flow concentrator causes the air at the second air outlet to be drawn and flow to generate a venturi effect, the second chamber generates the negative pressure, so that the air outside the bypass air flow component enters the filter through the second air inlet and is discharged through the second air outlet, and the filter purifies all the air entering the bypass air flow system.

As shown in fig. 15 and 16, in one embodiment, the air cleaning device 700 includes a bypass airflow assembly 720. The bypass airflow assembly 720 includes a filter 722, a second housing 724, and a second air intake structure 726. The second housing 724 is a hollow ring, and the second housing 724 may be a ring with a circular, oval, square or other shape. The interior of the second housing 724 is provided with an annular interior cavity, which may be annular. The second housing 724 includes a first side wall 7244 and a second side wall 7246 disposed opposite to each other, the first side wall 7244 and the second side wall 7246 are smoothly curved toward the same annular side and gradually close to each other, and the second side wall 7246 is close to the hollow position of the second housing 724. The second air outlet 7242 is a gap between the first side wall 7244 and the second side wall 7246, and the second air outlet 7242 may be an air outlet gradually narrowing in shape, or may be a jet-type air outlet.

The hollow position of the second housing 724 is in the shape of the letter "O", the second air outlet 7242 is also in the shape of the letter "O", and the second air outlet 7242 surrounds the hollow position of the second housing 724. The second air inlet structure 726 communicates the interior of the second housing 724 and the filter 722. The shape of the second air inlet structure 726 may be arbitrary, and the second air inlet structure 726 may be formed by extending the second housing 724, and the shape of the second housing 724 does not limit the shape of the filter 722.

The air can be driven by an external aerodynamic device to pass through the hollow position of the second housing 724, so that a negative pressure is formed at the second air outlet 7242, a negative pressure space with a negative pressure is formed by the annular inner cavity inside the second housing 724 and the inner cavity of the second air inlet structure 726, and the air outside the negative pressure space can enter the second air inlet structure 726 through the filter 722, flow into the second housing 724, and finally be discharged from the second air outlet 7242.

When the air flow discharged from the second air outlet 7242 is discharged around the hollow position of the second housing 724, a coanda effect is caused, which draws the air outside the bypass air flow assembly 720, i.e., the air near the second housing 724 in the shape of a hollow ring, to follow the air flow discharged from the second air outlet 7242, thereby increasing the flow rate of the air, and allowing the air flow discharged from the second air outlet 7242 and the air outside the bypass air flow assembly 720 to pass through the hollow position.

in one embodiment, the air purification apparatus 700 further comprises a main airflow assembly comprising a first housing forming the first outlet, see fig. 16, the first sidewall 7244 is adjacent to the main airflow assembly, and the first housing and the first sidewall 7244 are in a unitary construction. The second sidewall 7246 is longer than the first sidewall 7244, and the second sidewall 7246 surrounds the second outlet 7242 and the first outlet. The longer portion of the second side wall 7246 forms an enclosure wall.

In other embodiments, if the second side wall 7246 is adjacent to the main airflow assembly, the first and second side walls 7246 coincide with a unitary structure. The first sidewall 7244 is longer than the second sidewall 7246, and the first sidewall 7244 surrounds the second outlet 7242 and the first outlet. The longer portion of the first side wall 7244 forms an enclosure wall.

In fig. 16, the arrows within the second housing 724 illustrate the direction of movement of the airflow driven by the bypass airflow assembly 720. The hollow arrows and the dotted arrows outside the second side wall 7246 show the direction of the gas flow outside the air purification apparatus 700 by the coanda effect.

Referring also to fig. 17, in one embodiment, the air cleaning device 700 further includes a main air flow concentrator 740 and a blower 760, the main air flow concentrator 740 is disposed in a hollow position of the second housing 724, and a portion of the main air flow concentrator 740 may protrude out of the hollow position. Main air flow concentrator 740 includes an inner wall 742 and an outer wall 744, outer wall 744 surrounding inner wall 742, and an air flow path between inner wall 742 and outer wall 744. The opening at one end of the airflow channel is an air inlet 746, and the opening at the other end of the airflow channel is an air outlet 748. The air inlet 746 faces the air inlet of the hollow position, the air outlet 748 is close to the second air outlet 7242, and the area of the air inlet 746 is larger than that of the air outlet 748. The fan 760 is disposed at the air inlet of the hollow portion to provide air flow to the hollow portion, and the air flow enters the air inlet 746 of the main air flow concentrator 740, is concentrated in the main air flow concentrator 740, is rectified and converted into air flow flowing at high speed, and is discharged from the air outlet 748. The main air flow concentrator 740 accelerates the flow rate of the air flow at the second air outlet 7242, increases the negative pressure of the negative pressure space, and further allows the air outside the negative pressure space to enter the second air inlet structure 726 through the filter 722, and then flows into the second housing 724, and finally is discharged from the second air outlet 7242.

In still other embodiments of the present invention, the filter, the first air inlet, the second air inlet, the first air outlet, and the second air outlet. The position of the pre-filter can be changed, so long as when the air is driven to flow from upstream to downstream in the air purification device, the air flow enters the first shell from the first air inlet and then is directly discharged from the first air outlet. When the airflow is discharged from the first air outlet, the air at the position adjacent to or slightly in front of the outside of the first air outlet, namely the air at the position of the second air outlet, is also dragged to flow by the discharged main airflow, so that a negative air pressure area is generated in the negative pressure space, and the airflow enters the negative pressure space through the filter to be purified, thereby flowing into the spirit of the invention.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An air purification device is characterized by comprising a main airflow component and a side airflow component;

The main airflow component is provided with a first air inlet and a first air outlet; the primary air flow assembly further includes a primary air flow concentrator having an air flow channel; an opening at one end of the airflow channel is an air inlet, and an opening at the other end of the airflow channel is an air outlet; the area of the air inlet is larger than that of the air outlet;

the bypass airflow component is provided with a negative pressure space and a second air outlet; the second air outlet is communicated with the negative pressure space and the outside of the negative pressure space, and is close to the first air outlet;

The outside of the negative pressure space comprises the outside space of the bypass airflow component communicated with one side of the filter for inputting the gas and the outside space of the bypass airflow component communicated with the second air outlet;

Wherein the primary airflow assembly comprises a first housing, the primary airflow concentrator being disposed within the first housing; the main airflow concentrator comprises an inner wall and an outer wall, the outer wall is sleeved outside the inner wall, and the airflow channel is arranged between the inner wall and the outer wall; the air inlet faces the first air inlet, and the air outlet is close to the second air outlet; the bypass airflow assembly further comprises a second shell and a second air inlet structure; the second shell is hollow and annular, and an annular inner cavity is formed in the second shell; the second shell comprises a first side wall and a second side wall which are arranged oppositely, and the second air outlet is a gap between the first side wall and the second side wall; the second air inlet structure is communicated with the inside of the second shell and the filter.

2. the air purification apparatus according to claim 1, wherein the second sidewall is close to a hollow position of the second housing, the first housing is in a hollow ring shape, and the first housing and the second sidewall are of a coincident and integral structure;

3. The air purification apparatus of claim 2, wherein the second outlet and the primary air flow concentrator outlet form a total outlet; the air purification device can further comprise at least one surrounding wall, and the surrounding wall is a surrounding wall surrounding the total air outlet.

4. The air purification apparatus of claim 3, wherein the enclosure wall is higher than the second air outlet.

5. The air purification apparatus of claim 3, wherein the enclosure wall is higher than the first outlet and the second outlet.

6. an air cleaning device according to claim 3, wherein the wall has a gradually increasing cross-sectional area, so that the total outlet is gradually increased, the narrowest part of the wall being located at the end of the wall near the first outlet and the second outlet, and the widest part being located at the end of the wall near the end leading to the exterior space.

7. The air purification apparatus of claim 5, wherein the enclosure wall is an extension of the first housing or the second housing.

8. The air purification device of claim 1, wherein the primary air flow assembly comprises a first housing, a first air intake structure and a fan, the first housing is in a hollow annular shape, the first housing and the second housing are arranged in parallel, and the first air intake structure is communicated with the inside of the first housing and the fan; the first air outlet is arranged on the first shell, and the first shell is close to the first air outlet and gradually tightens up.

9. the air purification apparatus of claim 8, wherein the bypass airflow assembly is provided in plurality in a side-by-side arrangement, and a first side wall of the bypass airflow assembly coincides with a second side wall of the adjacent bypass airflow assembly.

10. The air purification apparatus of claim 9, wherein the second sidewall of the bypass airflow assembly coincides with the first sidewall of the adjacent bypass airflow assembly.