CN103768878B - High-efficiency air purification device and method - Google Patents

Abstract

The invention discloses a main filter element, which effectively purifies air with pollutants; it is characterized in that the main filter element is arranged in an air purification device; the device air inlet or the device air outlet of the air purification device is connected to the air inlet or the air outlet of the other environment device; the main filter elements are not arranged in parallel with the fan; the main filter element does not affect the fan motor load of the original environment device. When the main air flow driven by the fan flows from the upstream to the downstream in the shell, the main air flow flows by at least one area of the main filter element, so that at least two areas of the main filter element are at different air pressures; the bypass air stream flows through the primary filter element from the side of the primary filter element having the higher air pressure to the side having the lower air pressure; the air with contaminants is effectively purified by the primary filter element.

Description

High-efficiency air purification device and method

This application is a divisional application of the invention application "High Efficiency Air Purification Device and Method" filed on May 20, 2011 with application number 201110148952.4.

technical field

The patent of the present invention relates to the field of environmental protection, and more specifically, relates to a device that can be used for air purification.

Background technique

Pollutants in the air are mainly composed of two forms. One is larger particles such as dust, bacteria, and mold. Their molecular structure is complex and they are composed of many different substances or components. Microns to hundreds of microns in size; one is chemical molecules such as gases, odors, and volatile organic chemicals, which have a simple chemical structure and are composed of several chemical elements, and are very small, only in the size of angstroms to nanometers.

To deal with these two types of pollutants, different filtration methods are generally used. Traditional useful filter paper, even high-efficiency filter paper (HEPA Filter) to filter air with pollutants, also uses static electricity generated by high voltage. Dust removal, or there is a method of releasing negative ions to make the dust particles suspended in the air negatively charged, and then make them gather in a more neutral or positively charged place. Activated carbon, molecular sieves, and zeolites are used as filter materials, or ozone, oxidants, and ultraviolet lamps are used together with photocatalysts or different catalytic catalysts to oxidize and catalyze pollutants. These filtration methods have their own characteristics and performance. For different pollutants in the air, air purifiers on the market often use more than one air purification technology and filtration method. The filter element arrangement method used is usually a layer-by-layer arrangement of filter elements in parallel, and only one exhaust fan or blower is provided to drive the airflow from upstream to downstream.

Different filter elements have different physical and chemical characteristics. Some use filtration, some use adsorption, and some use ionization. Some filter elements have greater air resistance, some have thinner air resistance, and some have no air resistance. Since there are different concentrations of pollutants and different sources of pollutants in the air, this makes air purification a complicated subject.

Using the traditional arrangement of filter elements, one exhaust fan or blower is used to force all the filter elements arranged in parallel to process pollutants at the same wind speed. It is difficult to effectively exert the functions and efficiency of the filter elements themselves. Sometimes, due to the failure of the pre-filter layer to effectively treat pollutants, some filter layers have a shortened lifespan, or even break down, or blow out the collected pollutants, increasing the pollutants in the environment.

In U.S. Patent No. 6,248,146 proposes a method for assembling filter elements not in a parallel arrangement. In order to allow air to flow through the second air filter element (124), the patent shows a narrowed channel (106) design, when When the air flows through the narrowed channel, the speed will increase, thereby reducing the air pressure of the second air intake space (112), causing the outside air to enter the second air intake space (112) through the second air filter element (124), and then merge with the original air flow It is mixed in the static recovery zone (116) and discharged through the output filter element (126). This patent does not explicitly describe the use of an extractor fan or blower. But no matter use exhaust fan or blower to create air flow, there are still great disadvantages in practical application. If you use an exhaust fan, the design of the narrowed channel (106) will make the device emit high-frequency nitrous noise. If you use a blower, in addition to the shortcoming of making the above-mentioned high-frequency nitrous noise, the narrowing degree of the narrowed channel (106) , narrower and narrower than when using the exhaust fan, just can make the second air intake space (112) become to have enough negative pressure effect, make the outside air pass through the second air filter element (124). And, if use hair dryer, also use the hair dryer motor of very big torque, just can resist the wind resistance effect that narrow passage (106) causes, and the airflow of a certain amount is sent in the device, and situation is the same as blowing in the drinking pipe with mouth , If you slightly flatten the middle of the drinking tube with your fingers, it will take a lot of force to blow the wind into the drinking tube. A blower motor with a large torque consumes more energy, is more expensive, and further increases the noise of the device.

Contents of the invention

In view of the above problems, the present invention provides a method and device, so that when the air purification device is in operation, it can match the different physical and chemical characteristics of the filter element, including the core resistance of the air filter, the filtering principle, the air flow speed for optimal filtering of pollutants, etc. to effectively treat pollutants.

The air purification device of the present invention uses the main filter element, and the effect is more obvious for the adsorption or chemical reaction catalyzed filter element that requires a slower airflow to achieve the filtering effect, or for treating air that contains a variety of pollutants including gas pollutants. The air purification device of the present invention also effectively prolongs the life time of the main filter element.

Because the present invention is by the side airflow through main filter core, rather than traditional main airflow; Side airflow speed can also be changed by following multiple parameters except that the running speed of the equipment that can rotate because of blower fan or can be changed: device air inlet Size; the size of the main air inlet; the size of the side air inlet; the orientation of the main filter element in the device; the orientation of the auxiliary filter element in the device; the size of the air outlet, etc. Therefore, the design of the air purifier can be more flexible, and the main filter element can always operate at the effective and optimal air flow speed to exert the best effect, and it will not have to match other filter elements in the device and the original fan. Wind speed weakens its original effect and shortens its life. What's more, since the main filter element is not arranged in parallel with the fan, its wind resistance characteristics and thickness characteristics will not affect the load of the original fan. Therefore, the present invention further provides an environmentally friendly method, users can use environmental devices that are equipped with fans or cyclically rotating equipment, such as fans, exhaust fans, coolers, air conditioners, heaters, and even the air outlets of car air conditioners , or any air purifier, etc., and then add the main filter element of the present invention to the air outlet or air inlet of the environmental device, so that the original environmental device becomes an air purifier without affecting the fan motor load of the original environmental device. The matching main filter element described above can be installed in accordance with the shape, thickness, shape, installation angle and orientation of the main filter element, so that the wind speed of the side airflow can be intelligently adjusted, making the environmental device an intelligent air purifier.

This air cleaning method is realized like this, uses an air cleaning device, has included

a shell;

at least one device air inlet;

at least one device outlet;

At least one primary filter element;

at least one primary air inlet;

at least one side air inlet;

at least one method or device for passing the primary gas stream from upstream to downstream;

The main air inlet and the side air inlet are arranged at the position of the air inlet of the device.

When the main air flow flows from upstream to downstream in the housing, it first flows through at least one area of the main filter element from the main air inlet, so that at least two areas of the main filter element are at different air pressures; At least two areas of the above-mentioned main filter element are arranged in parallel with the flow direction of the main airflow; the side airflow is air with pollutants; the side airflow passes through the side airflow inlet, from the side of the main filter element with higher air pressure (that is, the inlet of the main filter element) The wind side) flows to the side with lower air pressure (that is, the air outlet side of the main filter element), so that the polluted air can be purified.

The air purification device also includes at least one pressure exhaust port. The pressure exhaust port is arranged at any position of the casing. When the speed of the exhaust fan or the blower fan is too high, the flow rate and flow rate of the main airflow and side airflow cannot cope with or match the exhaust fan or blower. When the speed of the blowing fan is adjusted, the pressure exhaust port can be adjusted to open to a suitable size. The outside air can also flow into or out of the casing through the pressure exhaust port.

The air purification device also includes at least one auxiliary filter element.

The device that makes the main airflow flow from upstream to downstream can be a fan or a device that can circulate;

The method for making the main airflow flow from upstream to downstream can be to connect the air cleaning device according to the present invention to another environmental device containing an exhaust fan or a blower; the connection method is to make the present invention The device air inlet or device air outlet of the air purification device is connected to the air inlet or air outlet of the other environmental device, so as to achieve the purpose of the main airflow of the present invention flowing from upstream to downstream.

The fan can also be an exhaust fan, and the exhaust fan is arranged downstream of the main filter element, and draws air from the upstream to the downstream of the casing.

The fan can also be a blower or a blower, and the blower or blower is arranged upstream of the main filter element to send air from upstream to downstream in the housing.

When using an exhaust fan, the air purification effect and efficiency are more obvious than those using a blower or blower, and the same purification effect can be achieved with less energy consumption. This is because the exhaust fan does not need to consume extra energy to resist the blowing wind resistance caused by the casing in the device, and the exhaust air also makes the flow of the main air flow more even. On the contrary, if a blower or blower is used, when the flow rate of the main air flow increases to the extent that the housing of the device cannot accommodate and flows through at the same time, the excessive main air flow will bounce off the inner wall of the housing, causing useless blowing resistance and requiring a larger motor torque Only a special blower or hair dryer can send the airflow to the air outlet of the device. In addition to consuming more energy, it will also generate noise, turbulent flow or turbulent flow, which will reduce the flow rate of the surrounding airflow. Even so, the basic spirit of the present invention can also be achieved by utilizing a suction fan or a blower or a blower.

The device for making the main airflow flow from upstream to downstream can also be a circulating rotating device connected to the main filter element. When the circulating rotating device is in operation, the main filter element also rotates at the same time, driving the main airflow from the housing from the upstream to the downstream; the main airflow flows through the side of the main filter element with at least one area, so that at least two areas of the main filter element are at different air pressures; the side airflow flows from the air inlet surface of the main filter element to the outlet of the main filter element Wind side, so that polluted air can be purified.

The air purification device mentioned above can also be regarded as a basic unit. A plurality of said basic units can also be combined together, and said combination method is to use part or all of the device air outlets of one unit to connect to part or all of the devices connected to one or more units Air inlet.

The main air inlet of the device for air purification, the side air inlet and the device air inlet also have the characteristics of one of the following three items:

1. The main air inlet and the side air inlet originate from one device inlet; or

2. The main air inlet and the side air inlet come from different device air inlets; or

3. The above two characteristics coexist at the same time

And use one or more of the following methods to produce the main air flow velocity difference between the main filter element air inlet surface and the main filter element air outlet surface, so that the two areas are at different air pressures:

1. Said difference in main airflow velocity is produced by using one or more than one blower.

2. The difference in wind speed of the main airflow is caused by the difference between the inner contour line and the outer contour line of the longitudinal section of the main filter element.

3. The air outlet surface of the main filter element and the air inlet surface of the main filter element are made of different materials or have different surface roughness effects.

4. Adjust the parameters of one or more of the following:

The switch size and orientation of the air inlet of the device; the size and orientation of the air outlet of the device; the size and orientation of the main air inlet; the switch, size and orientation of the side air inlet; the length, width, thickness and height of the housing; The width, length, and direction of the path or channel of the main air flow in the housing; the orientation of the main filter element in the device; the orientation of the auxiliary filter element in the device; the operating speed of the equipment that makes the main air flow flow from upstream to downstream

When the side air inlet of the main filter element is adjusted to close, the flow rate of the side air flow of the main filter element will also be adjusted to zero flow at the same time to match this setting. When the main filter element is a catalyst to catalyze the oxidation of organic pollutants, the auxiliary filter element is also used to purify dust particulate pollutants. It is adjusted to close, forcing all the air to be filtered by the auxiliary filter element first, until the dust particulate pollutants reach a reasonable level, the side air inlet is opened to purify the gas pollutants and the remaining dust particulate pollutants. Therefore, the present invention can intelligently perform systematic and effective air purification according to the pollutants in the environment.

When adjusting the length, width, thickness, and height of the housing and the path or channel width, length, and direction of the main air flow in the housing; it is also possible to change the flow and velocity of the main air flow, and flow through The position and direction of the main filter element are used to change and control the flow, velocity, and position and direction of the side airflow.

In addition, by adjusting the orientation of the main filter element and the auxiliary filter element in the device, the flow path of the main airflow and the side airflow can be adjusted, and the pressure of the air passing by the main filter element due to the main airflow can be adjusted, thereby adjusting the size of the side airflow.

The adjustment method is carried out by one or more mixed methods of manual adjustment and electronic automatic adjustment.

The air purification device also includes a central processing unit.

The air purification device also includes one or more environmental sensors, which are used to measure temperature, humidity, volatile organic compounds, formaldehyde, carbon dioxide, carbon monoxide, dust, ozone, nitrogen oxides, bacteria, At least one of radon gas, wind speed, wind current, air pressure, ambient light brightness, sound, and various radiation levels in the air.

The electronic automatic adjustment method can be judged according to the data measured by the environmental sensor, or can be performed by a computer program embedded in the central processing unit in advance.

The computer program includes one or more modes of operation of the device, such as a dust removal mode in which the auxiliary filter element is reused to remove particulate pollutants or multiple modes for removing particulate pollutants of different sizes, and the main filter element is reused as a dust removal mode. The deodorization or volatile organic pollutant removal mode for removing gaseous pollutants or multiple modes for removing different gaseous pollutants, the sterilization mode with ultraviolet light, and the sleep mode that reduces the air volume to reduce the noise emitted by the device.

A described air purification device, its multiple main filter elements and auxiliary filter elements can have one or more differences:

different filtration principles,

Different optimal filtration wind speed,

Different time to keep pollutants in the filter element,

different wind resistance

different filter densities

Utilizing an air purification device according to the present invention, the main filter element and the auxiliary filter element can effectively purify different pollutants at the same main airflow velocity, each at an optimal airflow velocity.

In addition, using the present invention, when the main filter element has a higher density and lower wind resistance than the auxiliary filter element, the present invention can effectively purify the air with pollutants by the main filter element without increasing the air flow of the fan. Load, effectively reduce noise, and reduce energy consumption.

In some embodiments, the primary filter element is a filter element for filtering gaseous pollutants, odors or organic pollutants.

In some implementation examples, the auxiliary filter element is a filter element for filtering dust and particulate pollutants.

In some implementation examples, the auxiliary filter element is a filter element for filtering bacteria.

In some implementation examples, the main filter element is one of the following filter materials:

1. Granular materials containing activated carbon, photocatalytic materials or molecular sieves, zeolite materials, or mixed with one or more types of granular mixtures of the above in any proportion, the granular materials, in any shape and material Store in a ventilated container.

2. Adhesive ventilation materials containing activated carbon, photocatalysis or molecular sieve zeolite, or one or more types mixed in any proportion.

3. Adhering to honeycomb materials containing activated carbon, photocatalysis or molecular sieve zeolite, or one or more types mixed in any proportion.

In some of the implementation examples, the air inlet or outlet surface of the main filter element is also equipped with at least one filter layer with other air purification functions, such as pre-dust filter paper, to further protect the main filter element and Prevent the filter material of the main filter element from being blown out.

The main filter element can also be a group of purification filter elements arranged in parallel with different functions

In some implementation examples, the air inlet or outlet surface of the auxiliary filter element is also equipped with other secondary filter layers with the function of purifying air, such as pre-dust filter paper.

The auxiliary filter element can also be a group of purification filter elements arranged in parallel with different functions.

In some implementation examples, the auxiliary filter element is a dust collector that is ionized by high voltage and then electrostatically collects dust particulate pollutants. The high voltage produces ionization dust collector. The auxiliary filter element mentioned above is a high-efficiency filter paper (HEPA Filter) to filter dust particles in the air.

The orientation of the main filter element and auxiliary filter element mentioned above should conform to the flow path of the main air and try to avoid turbulence or turbulence, which may reduce the filtering effect of the main filter element

The main filter element is a filter element with an average thickness, and the contour lines of the air inlet surface and the air outlet surface of the longitudinal section of the main filter element are arranged in parallel. The main filter element is a filter element with uneven thickness, and the contour lines of the air inlet surface and the air outlet surface of the longitudinal section of the main filter element are not arranged in parallel.

In some of the implementation examples, the main filter element is a solid three-dimensional filter element, including more than one area; the three-dimensional filter element, in addition to being a circular or round spherical shape, can also be two of the following: Or a solid three-dimensional filter element composed of multiple areas:

The area of any planar graph type

The area of any regular or irregular two-dimensional solitary surface

Any regular or irregular three-dimensional area

The three-dimensional filter element includes one or more air inlet surfaces and one or more air outlet surfaces.

In some implementation examples, when the main filter element is a solid three-dimensional filter element, the air inlet surface of the main filter element is a two-dimensional area, and the air outlet surface is a two-dimensional or three-dimensional area; as described The air inlet surface of the main filter element is a plane, and the air outlet surface is a plurality of planes or a two-dimensional or three-dimensional area, and the total area of the air inlet surface is smaller than the total area of the air outlet surface.

In some implementation examples, the main filter element is a hollow columnar filter element, the hollow direction of the columnar filter element is arranged in parallel with the direction of the main airflow, and the air inlet surface and the air outlet surface are in the The inner surface and outer surface area or the outer surface and inner surface area of the hollow columnar filter element.

In the above-mentioned air purification device, when the main filter element is a hollow columnar filter element, when the main airflow flows from the upstream to the downstream in the housing, the main airflow flows through one or more of the following paths :

1. Only flow through the inner surface area of the hollow cylindrical filter element.

2. Only flow through the outer area of the hollow cylindrical filter element.

3. Flow through the inner surface area and the outer surface area of the hollow cylindrical filter element at the same time.

In some implementation examples, when the main filter element is a three-dimensional hollow cylindrical filter element, the inner contour line of the longitudinal section of the hollow cylindrical filter element is longer than its outer contour line. The outer surface area of the hollow columnar filter element is the air inlet surface, and the inner surface area of the hollow columnar filter element is the air outlet surface.

In some implementation examples, the inner contour line of the longitudinal section of the hollow cylindrical filter element is shorter than its outer contour line. The inner surface area of the hollow columnar filter element is the air inlet surface, and the outer surface area of the hollow columnar filter element is the air outlet surface.

In some implementation examples, the main airflow flows through the inner contour line and the outer contour line of the longitudinal section of the hollow cylindrical filter element, and the airflow velocity adjacent to the inner contour line is faster than that of the airflow adjacent to the outer contour line. high speed. The air inlet surface is located on the outer surface of the hollow columnar filter element, and the air outlet surface is located on the inner surface area of the hollow columnar filter element. On the contrary, the main airflow flows through the inner contour line and the outer contour line of the longitudinal section of the hollow cylindrical filter element, and the air velocity adjacent to the inner contour line is slower than that adjacent to the outer contour line. The air inlet surface is located in the inner surface area of the hollow columnar filter element, and the air outlet surface is located in the outer surface area of the hollow columnar filter element.

In the aforementioned air purification device, the auxiliary filter element is arranged at one of the positions upstream or downstream of the main filter element; or at both upstream and downstream positions, the orientation of the assembly of the auxiliary filter element Allows the main air flow to flow directly through it. If the auxiliary filter element is set at the upstream position of the main filter element, the air with pollutants first passes through the auxiliary filter element with the main airflow driven by the fan, and then directly flows through the auxiliary filter element, the air with pollutants is initially purified, and Combines at a further downstream location with air that has been cleaned by the primary filter. If the auxiliary filter element is arranged downstream of the main filter element, the air purified by the main filter element will be combined with the main airflow at a relatively downstream position, and directly flow through the auxiliary filter element, so that the air with pollutants can be double purified.

In the above air purification device, the auxiliary filter element is set at one of the upstream and downstream positions of the main filter element; or at both upstream and downstream positions, the auxiliary filter element and the The main filter elements are arranged in series. Driven by the fan, the main airflow drawn from upstream to downstream flows past the auxiliary filter element, so that at least two areas of the auxiliary filter element are at different air pressures, and the air with pollutants flows from the side with higher air pressure of the auxiliary filter element to The side with lower air force makes the polluted air to be purified. The air cleaned by the auxiliary filter is combined with the air cleaned by the main filter.

In the device for purifying air, the auxiliary filter element is set in one or more of the following positions:

1. Set at the front position of the air inlet side of the main filter element, and arrange in parallel with the main filter element

2. Set at the rear position of the air outlet surface of the main filter element, and arrange in parallel with the main filter element

When the auxiliary filter element is set at the front position of the air inlet surface of the main filter element, when the fan operates, the airflow is driven from the upstream to the downstream of the casing, and the airflow is at least one from the main filter element. At least one area of the auxiliary filter element and the air outlet surface of the main filter element are at different air pressures, and the air with pollutants flows from the higher air pressure side of the auxiliary filter element to the air inlet surface of the main filter element, and then flows to the main filter element. The lower air pressure side of the filter allows the polluted air to be purified.

When the auxiliary filter element is set at the rear position of the air outlet surface of the main filter element, when the fan operates, the airflow is drawn from the upstream to the downstream of the casing, and the airflow is rarely drawn from the auxiliary filter element. At least one area of the auxiliary filter element and the air inlet surface of the main filter element are at different air pressures, and the air with pollutants flows from the higher air pressure side of the main filter element to the air inlet surface of the auxiliary filter element, and then flows to the air inlet surface of the auxiliary filter element. The lower air pressure side of the auxiliary filter allows the polluted air to be purified.

The air purification device also includes at least two auxiliary filter elements, one of which is arranged in parallel with the main filter element, and the other auxiliary filter element is arranged in series with the main filter element.

When the fan is in operation, it drives the main airflow from the upstream to the downstream of the casing, allowing the side airflow to flow through

(1) Auxiliary and main filter elements arranged in parallel; and

(2) Auxiliary filter element arranged in series with the main filter element

Both are combined with the main airflow at a downstream location and discharged, allowing the polluted air to be purified.

The air purification device also includes at least two auxiliary filter elements, and one of the auxiliary filter elements is assembled in such a way that the airflow driven by the fan from upstream to downstream can pass through directly. The other auxiliary filter element is arranged in parallel with the main filter element, and is arranged in front of the air inlet side or behind the air outlet side of the main filter element.

The air with pollutants is purified through the following two paths:

1. The air with pollutants passes through the auxiliary filter element with the airflow driven by the fan, and directly flows through one of the auxiliary filter elements and is purified;

2. The air with pollutants is combined with the air purified by the combination of auxiliary filter elements arranged in parallel and the filter elements of the main filter element.

The purified air from both paths is combined at a more downstream location and discharged.

The above-mentioned air purification device also includes at least two auxiliary filter elements, and one of the auxiliary filter elements is assembled so that the airflow from upstream to downstream driven by the fan can directly flow in and through. Another auxiliary filter element is arranged in series with the main filter element, and the two auxiliary filter elements are arranged upstream or downstream of the main filter element.

The air with pollutants is purified through the following three paths:

1. The air with pollutants first passes through the auxiliary filter element with the main airflow driven by the fan, and then directly flows through the auxiliary filter element, and the air with pollutants is initially purified;

2. The air with pollutants flows from the higher air pressure side of the auxiliary filter element to the lower air pressure side;

3. The air with pollutants flows from the higher air pressure side of the main filter element to the lower air pressure side.

The air purified by the three paths is combined at a more downstream location and discharged.

The air purification device also includes at least three auxiliary filter elements, and one of the auxiliary filter elements is assembled so that the airflow from upstream to downstream driven by the fan can directly flow in and through;

Another auxiliary filter element is arranged in parallel with the main filter element, and is arranged in front of the air inlet side or behind the air outlet side of the main filter element.

Another auxiliary filter element is arranged in series with the main filter element, and is arranged upstream or downstream of the main filter element.

The air with pollutants is purified through the following three paths:

1. The air with pollutants passes through the auxiliary filter element with the main airflow driven by the fan, and directly flows through the auxiliary filter element, and the air with pollutants is purified;

2. The air with pollutants flows from the higher air pressure side of the auxiliary filter element to the lower air pressure side;

3. The air with pollutants is combined with the air purified by the combination of the auxiliary filter elements arranged in parallel and the filter elements of the main filter elements.

The air purified by the three paths is combined at a more downstream location and discharged.

Described a plurality of auxiliary filter elements can be connected with each other and integrated into a total auxiliary filter element; the total auxiliary filter element has one or more of the following features:

Part or all of the total filter element is arranged in parallel with the main filter element;

Part or all of the total filter element is arranged in series with the main filter element;

The assembly direction of part or all of the total filter element and the main filter element can make the main air flow from upstream to downstream driven by the fan flow directly through

The air purification device also includes at least one or more accessories for purifying the air, including

High voltage electrostatic precipitator,

negative ion generator,

ozone generator,

oxidant generator,

Filter elements containing activated carbon, photocatalytic materials or molecular sieves, zeolite materials, or mixed in any proportion with one or more of the above types of any material in any shape and granular form,

water curtain device,

UV tube

And installed in any position to further assist in purifying the air

The air purification device also includes at least one or more accessories for air purification, including negative ion generator, ozone generator, oxidant generator, and the upstream position of the main filter element. The main filter element is a filter element that needs an oxidant or an active oxygen group to carry out a catalytic oxidation reaction.

The air purification device also includes at least one ultraviolet light tube upstream of the main filter element of the device. It is a filter element that activates gas pollutants and oxidants or active oxygen groups before entering the main filter element, and enters the main filter element to perform catalytic oxidation reaction more effectively.

The air purification device described above can also cooperate with different environmental devices, such as heaters, air coolers, air conditioners, dehumidifiers, dryers, range hoods, hand dryers, food recovery machines, composters, pet houses, Shoe cabinet and so on.

When the said air cleaning device is used to absorb the air with radiation, its housing is made of a material that does not leak radiation or is coated with a material coating that prevents radiation from leaking.

When the air purification device is used to absorb air with radiation, the air outlet surface of the main filter element is also provided with a radiation-proof interlayer.

Since the total air inlet volume of the device is equal to the total air outlet volume, the air inlet, the main air inlet, and the side air inlet are adjusted by adjusting the air inlet and outlet of all devices to effectively control the flow rate and flow rate of the side air. Its relationship is calculated by the following equation:

Equation 1: V _wm1 = V _main1 x n _A1 x k _v1 x C ₃

Equation 2: V _wm2 = V _main2 x n _A2 x k _v2 x C ₄

When using an extractor:

Equation 3: Volume Out=Volume In+leakage In

Equation 4: V _wm1 x A _m1 +V _wm2 x A _m2 +=Volume In+Leakage In

When using a hair dryer or blower:

Equation 5: Volume Out+leakage Out=Volume In

Equation 6: V _wm1 x A _m1 +V _wm2 x A _m2 +leakage Out=Volume In

In the above procedures 1-6, the parameters are defined as follows:

Volume Out: total air volume

Volume In: total air volume

Leakage In: The total volume of air leakage into the device without passing through the air inlet of the device

Leakage Out: The total volume of the air volume that does not leak out of the device through the air outlet of the device

V _wm1 : Main airflow velocity (passes through the main filter element side of the air outlet side)

V _wm2 : Main airflow velocity (passing through the main filter element side of the air inlet side)

V _main1 = the main airflow velocity adjacent to the outline of the air outlet side of the main filter element longitudinal section

V _main2 = the main airflow velocity adjacent to the contour line of the air inlet side of the main filter element longitudinal section

A _m1 : Cross-sectional area of main air inlet air outlet

A _m2 : cross-sectional area of side air inlet

n _A1 is the normal unit vector pointing into the main filter The vector pointing vertically to the outlet surface of the main filter element

k _V1 is the vertical unit vector, normal to the freestream direction The vector vertically pointing to the main airflow V _wm1

n _A2 is the normal unit vector pointing into the filter The vector pointing vertically to the air inlet side of the main filter element

k _V2 is the vertical unit vector, normal to the freestream direction The vector vertically pointing to the main airflow V _wm2

C ₃ = The system always counts 3

C ₄ = The system always counts 4

Calculate the air pressure of at least two areas of the main air flow and its flow velocity relationship of the main air flow according to the following mathematical equation:

Equation 7: P _in +[1/2xρx V _main1 ² ]=P _out +[1/2xρx V _main2 ² ]

In the above procedure 7, each parameter is defined as follows:

P _in = air pressure on the inlet side of the primary element

P _out = air pressure on the outlet side of the primary filter element

V _main1 = the main airflow velocity adjacent to the outline of the inlet side of the longitudinal section of the main filter element

V _main2 = the main airflow velocity adjacent to the outline of the air outlet side of the main filter element longitudinal section

ρ = density of air

Calculate the relationship between the thickness of the main filter element, the cross-section area, and the flow velocity when the side air flows through the main filter element according to the following mathematical equation:

Equation 8: (P _in –P _out )x D=(1/2)xv ³ xρ*C ₁ +C ₂

In the above procedure 8, each parameter is defined as follows:

P _out = air pressure on the outlet side of the primary filter element

P _in = air pressure on the inlet side of the primary element

D = The thickness of the filter element when the side air flows through the main filter element

C ₁ = The system always counts 1

C ₂ = system constant number 2

ρ = density of air

v=The flow velocity of the side air flow through the main filter element

The air purification device described above can also be applied to water purification or fluid systems,

The air inlet of the device is the inlet of the fluid device;

The air outlet of the device is the outlet of the fluid device

The fan is a device that drives fluid from upstream to downstream,

It is characterized in that the water purification or fluid system further includes at least one main flow inlet and at least one side flow inlet.

When the device is in operation, the main flow flows from upstream to downstream in the housing;

The main fluid flows through the main fluid inlet, next to at least one plane of the main filter element, so that at least two areas of the main filter element are at different fluid pressures;

The side flow is the fluid with pollutants; the side flow passes through the side fluid inlet, and flows from the higher fluid pressure side of the main filter element to the lower fluid pressure side (the air outlet side of the main filter element), so that the polluted fluid can be purified.

The present invention also includes a method for purifying air, the method comprising any one of the above systems to achieve air purification or fluid purification.

Description of drawings

Fig. 1-6 is the structural representation of embodiment 1 to embodiment 6 of the air cleaning device of the present patent application;

Fig. 7-14 is the schematic diagram of 8 shapes of the main filter element of the air purification device of the present patent application;

15-54 are structural schematic diagrams of Embodiment 7 to Embodiment 46 of the air cleaning device of the present patent application.

detailed description

Fig. 1 illustrates an implementation example one of an air cleaning device, and the described air cleaning device includes a housing 301, a device air inlet 101, a device air outlet 104, a main filter element 303, a fan 302, a main air inlet 102 and a side air inlet Tuyere 103. The main air inlet 102 and the side air inlet 103 are arranged at the position of the air inlet 101 of the device. As shown in the figure, in this embodiment, the main air inlet 102 and the side air inlet 103 are respectively from different device air inlets 101; the air cleaning device also includes a pressure exhaust port 106, when The speed of the exhaust fan 304 is too high, and the flow and velocity of the main airflow and the side airflow cannot cope with or cooperate with the speed of the exhaust fan or blower fan, the pressure exhaust port 106 can be adjusted to a suitable size, so that the air The air outside the purification device can also flow into the casing through the pressure exhaust port 106; the outlines of the air inlet surface 401 and the air outlet surface 402 of the main filter element 303 are arranged in parallel. When the fan 302 is in operation, the main airflow 202 is driven to flow from upstream to downstream in the casing 301; the main airflow passes through the main airflow inlet 102, and flows through at least one area 402 of the main filter element 303, the said main airflow When the main airflow 202 flows through the inner contour line of the longitudinal section of the main filter element 303 , the airflow velocity 204 adjacent to the inner contour line is faster than the airflow velocity 203 adjacent to the outer contour line. Make at least two areas 401 and 402 of the main filter element at different air pressures; the side airflow 201 is air with pollutants; the side airflow 201 passes through the side airflow inlet 103, from the side of the main filter element 303 with higher air pressure ( The air inlet surface 401 of the main filter element flows to the side with lower air pressure (the air outlet surface 402 of the main filter element), so that the polluted air can be purified.

Fig. 2 illustrates the implementation example two of the air cleaning device. The basic structure of this device is similar to the implementation example described in Fig. 1. The implementation example two is used as a fresh air blower, and its different air inlets are separated by a surrounding wall 306. The described The wall 306 can be a part of the casing 301, or can be formed by other barriers when installing the air cleaning device of the present invention. Generally, the fresh outdoor air has a higher temperature and humidity than the indoor air with the air conditioner activated. In order to save energy, while the pre-purified or untreated fresh outdoor air 207 is sucked in, some indoors are relatively frozen and dry. The air 206 can be purified through the main filter element 303 along with the side airflow 201 , and combined with the main airflow 202 containing the fresh air 207 to form a mixed air 208 , which is circulated and sent back to the room.

Fig. 3 illustrates an embodiment example 3 of the air cleaning device. The air cleaning device includes a housing 301, a device air inlet 101, a device air outlet 104, a main filter element 303, a blower fan 302, a main air inlet 102 and a side air inlet. Tuyere 103. In this embodiment, the main air inlet 102 and the side air inlet 103 come from the same device air inlet 101 . When the fan 302 is in operation, the main airflow 202 is driven to flow from upstream to downstream in the housing 301; the main airflow passes through the main airflow inlet 102, and flows through the side of at least one area 402 of the main filter element 303. When the main airflows 202 and 205 flow past the air inlet surface 401 and the air outlet surface 402 of the main filter element 303 , the airflow velocity 204 adjacent to the inner contour line is faster than the airflow velocity 203 adjacent to the outer contour line 401 . Make at least two areas (401, 402) of the main filter element at different air pressures; the side airflow 201 is air with pollutants; the side airflow 201 passes through the side airflow inlet 103, from the side of the main filter element 303 with higher air pressure ( The air inlet surface 401 of the main filter element flows to the side with lower air pressure (the air outlet surface 402 of the main filter element), so that the polluted air can be purified.

Fig. 4 illustrates an embodiment example 4 of an air cleaning device, the air cleaning device includes a housing 301, a device air inlet 101, a device air outlet 104, main filter elements 303A and 303B, blowers 302 and 304, and a main airflow inlet 102 And side air inlet tuyere 103A and 103B. When the fan 302 is in operation, it drives the main airflow 202 and 205 to flow from upstream to downstream in the housing 301; the main airflow 202 passes through the main airflow inlet 102 and the side airflow inlet 103A, and flows through the two sides of the main filter element 303A. Next to areas 401A and 402A and an area 402B of main filter element 303B, the airflow velocities 204A and 204B adjacent to the inner contour line are faster than the airflow velocity 203A and 203B adjacent to the outer contour line. At least two areas (401A and 402A, 401B and 402B) of the main filter elements are at different air pressures; side airflows 201A and 201B pass through side airflow inlets 103A and 103B, from the higher air pressure side of the main filter elements 303A and 303B Flow to the side with lower air pressure, so that polluted air can be purified.

As shown in the figure, in the fourth embodiment, the main air inlet 102 of the air purification device, the side air inlets 103 and 103BA, and the device air inlet 101 also have the following two features: (1) the main air inlet The tuyere 102 and the side air inlet 103A come from the same air inlet 101 ; (2) and the main air inlet 102 and the side air inlet 103B come from different device air inlets 101 .

In the fourth implementation example, two basic structures are included, the upper half is the same as the basic structure of the third implementation example, and the upper half is the same as the basic structure of the first implementation example. An air cleaning device of the present invention can also be regarded as a basic unit. When multiple units are combined, the fan in some units or any device that moves air from upstream to downstream in the housing can also be omitted. The method for combining multiple units is to use part or all of the device air outlets of one unit to connect to part or all of the device air inlets of another unit.

Fig. 5 and Fig. 6 illustrate an embodiment 5 and 6 of the air cleaning device, and the basic structure of the fifth embodiment is roughly similar to that of the first embodiment described in Fig. 1 . Embodiment 5 shows that the main air inlet 102 and the side air inlet 103 are from different device air inlets 101; Embodiment 6 shows that the main air inlet 102 and the side air inlet 103 are from the same device at the air inlet 101. The device of embodiment example 5 and 6 has used a solid three-dimensional filter element 303 as shown in Figure 7, and the outline of the air inlet surface 401 of its longitudinal section is not parallel to the outline of the air outlet surface 402, when the main airflow 202 and When 205 flows through the contour line of the air outlet surface 402 of the longitudinal section of the main filter element 303, the speed of the airflow 203 adjacent to the contour line of the air inlet surface 401 is slower than that of the airflow 202 adjacent to the contour line 402 of the air outlet surface, so that the main The air pressure on the air inlet side of the filter element 303 and its air outlet side are obviously different, and the side airflow 201 is air with pollutants; The air inlet surface 401 of the filter element flows to the side with lower air pressure (the air outlet surface 402 of the main filter element), so that the polluted air can be purified.

Except a solid three-dimensional filter core 303 as shown in Figure 7, described main filter core shape can also be the filter core of hollow column (as shown in Figure 8 and Figure 9); Figure 8 has shown the hollow column filter core of a thickness average , the contour lines of the air inlet surface 401 and the air outlet surface 402 of the vertical section are arranged in parallel. FIG. 9 shows a hollow cylindrical filter element with uneven thickness, the contour lines of the air inlet surface 401 and the air outlet surface 402 of the longitudinal section are not arranged in parallel. The inner contour line 402 of the longitudinal section of the hollow cylindrical filter element is longer than the outer contour line 401 . When applied to the devices shown in Figures 17 and 18 (Example 8 and Example 10), the outer area of the hollow columnar filter element is the air inlet surface 401 , and the inner surface area of the hollow columnar filter element is the air outlet surface 402 .

Fig. 10 shows another filter element which is composed of two two-dimensional curved surface areas and has an average thickness. The undulating contour on the surface of the filter element can increase the area of the side air inflow and outflow surfaces. The three-dimensional filter element 303 can be installed vertically or horizontally in the air purification device of the present invention. When this three-dimensional filter core 303 was installed vertically (as shown in Figure 10B), the inner and outer contours of the longitudinal section of the three-dimensional filter core 303 were parallel but non-linear; when this three-dimensional filter core 303 was installed horizontally (as shown in Figure 10A) ), the inner and outer contours of the longitudinal section of the three-dimensional filter element 303 are parallel and straight. When the main airflow flows through the contour line of the longitudinal section air outlet surface 402 of the main filter element 303 during horizontal installation, the airflow adjacent to the air inlet surface 401 contour line and the air outlet surface 402 contour line is smoother and can reduce turbulence or turbulence.

Figures 11 and 12 show two main filter elements with two two-dimensional arcuate surface areas as side air inlet and air outlet surfaces 401 and 402. When the three-dimensional filter element is installed vertically as shown in the figure, Figure 11 shows The outline of one side of the longitudinal section of the three-dimensional filter element 303 is a straight line, while Fig. 12 shows that the outlines of both sides of the longitudinal section of the solid filter element 303 are curved lines. FIG. 11 makes the main airflow flow smoothly and reduce turbulence or turbulence when the main airflow flows through the outline of the longitudinal section of the air outlet surface of the main filter element 303 .

Fig. 13 shows a three-dimensional filter element composed of a plane area on one side and a three-dimensional area on one side. The side of the three-dimensional area is the air outlet side, and the plane area is the air inlet side. When the contour line of the longitudinal section of the main filter element mentioned by the main air flow flows through, the airflow velocity adjacent to the contour line of the air inlet surface is higher than that of the air inlet surface. The airflow speed adjacent to the contour line of the air outlet surface is slow, so that the air pressure of the main filter element is significantly different from the air inlet surface and the air outlet surface.

Figure 14 shows another three-dimensional filter element composed of three-dimensional areas. As long as the main air inlet flows through at least one area of the main filter element, so that at least two areas of the main filter element are at different air pressures, the side airflow is from the side of the main filter element with higher air pressure (the main filter element air inlet side) Flow to the side of lower air pressure (the air outlet side of the main filter element), so that the polluted air can be purified, and the purpose of the present invention can be achieved.

15 and 17 show Example 7 and Example 8. The former uses a hollow columnar main filter element as shown in Figure 8, and the latter uses a hollow columnar main filter element as shown in Figure 9. The air purification device includes a housing 301 , a device air inlet 101 , a device air outlet 104 , a main filter element 303 , a fan 302 , a main air inlet 102 and a side air inlet 103 . The main air inlet 102 and the side air inlet 103 are arranged at the position of the air inlet 101 of the device. As shown in the figure, in this embodiment, the main air inlet 102 and the side air inlet 103 come from different device air inlets 101 respectively; the air inlet surface contour 401 and the air outlet surface contour of the main filter element 303 Lines 402 are aligned in parallel. When the blower 302 is in operation, it drives the main airflow 202 to flow from upstream to downstream in the housing 301; the main airflow 202 passes through the main airflow inlet 102, and flows through at least one area 402 of the main filter element 303, so that When the main airflow 202 flows through the inner contour line of the longitudinal section of the main filter element 303, the airflow velocity 204 adjacent to the inner contour line is faster than the airflow velocity 203 adjacent to the outer contour line. Make at least two areas 401 and 402 of the main filter element at different air pressures; the side airflow 201 is air with pollutants; the side airflow 201 passes through the side airflow inlet 103, from the side of the main filter element 303 with higher air pressure ( The air inlet surface 401 of the main filter element flows to the side with lower air pressure (the air outlet surface 401 of the main filter element), so that the polluted air can be purified.

16 and 18 show Example 9 and Example 10. The former uses a hollow columnar main filter element as shown in Figure 8, and the latter uses a hollow columnar main filter element as shown in Figure 9. The air purification device includes a housing 301 , a device air inlet 101 , a device air outlet 104 , a main filter element 303 , a fan 302 , a main air inlet 102 and a side air inlet 103 . The main air inlet 102 and the side air inlet 103 are arranged at the position of the air inlet 101 of the device. As shown in the figure, in this embodiment, the main air inlet 102 and the side air inlet 103A come from the same device air inlet 101; the outline of the air inlet surface 401 and the air outlet surface 402 of the main filter element 303 The lines are arranged in parallel. When the blower 302 is in operation, it drives the main airflow 202 to flow from upstream to downstream in the housing 301; the main airflow 202 passes through the main airflow inlet 102, and flows through at least one area 402 of the main filter element 303, so that When the main airflow 202 flows through the inner contour line of the longitudinal section of the main filter element 303, the airflow velocity 204 adjacent to the inner contour line is faster than the airflow velocity 203 adjacent to the outer contour line. Make at least two areas 401 and 402 of the main filter element at different air pressures; the side airflow 201 is air with pollutants; the side airflow 201 passes through the side airflow inlet 103, from the side of the main filter element 303 with higher air pressure ( The air inlet surface 401 of the main filter element flows to the side with lower air pressure (the air outlet surface 402 of the main filter element), so that the polluted air can be purified.

Fig. 19 and Fig. 21 have shown embodiment 11 and embodiment 12, and the main air inlet tuyere 102 of two embodiments and side air inlet tuyere 103 come from different device air inlets 101 respectively, and all of two embodiments have used such as Figure 8 shows a hollow cylindrical main filter element 303, and includes an auxiliary filter element 501, the orientation of the assembly of the auxiliary filter element 501 allows the main air flow to flow directly through it. If the auxiliary filter element 501 is arranged at the upstream position of the main filter element 303 (as shown in the embodiment 11 in Figure 19), the air with pollutants will first pass through the auxiliary filter element 501 along with the main airflow 202 driven by the fan, and then directly flow into and pass through Auxiliary filter element 501, the air with pollutants is initially purified, and combined with the air purified by the main filter element 303 at a relatively downstream position. If the auxiliary filter element 501 is arranged at the downstream position of the main filter element 303 (as shown in the embodiment 12 in FIG. 21 ), the air purified by the main filter element 303 is combined with the main airflow 202 at a relatively downstream position, and directly flows through the auxiliary filter element. 501, so that the air with pollutants can be double purified.

Figure 22 shows that the main air inlet 102 and the side air inlet 103 of embodiment 13 are respectively derived from different device air inlets 101, and embodiment 13 also includes two auxiliary filter elements 501, and uses a filter as shown in Figure 8 Hollow cylindrical main filter element 303. The auxiliary filter element 501 is disposed upstream and downstream of the main filter element 303 .

Figures 20 and 23 show Embodiment 14 and Embodiment 15. The main air inlet 102 and the side air inlet 103A of the two embodiments are derived from the same device air inlet 101; The hollow cylindrical main filter element 303 shown. An auxiliary filter element 501 is included, and the assembly orientation of the auxiliary filter element 501 allows the main air flow to pass through directly. If the auxiliary filter element 501 is arranged upstream of the main filter element 303 (Example 14 is shown in Figure 20), the air with pollutants first passes through the auxiliary filter element 501 with the main airflow 202 driven by the fan, and then directly flows into the auxiliary filter element 303. Filter element 501, the air with pollutants is initially purified and combined with the air purified by the main filter element 303 at a more downstream position. If the auxiliary filter element 501 is arranged at the upstream and downstream positions of the main filter element 303 (as shown in the embodiment 15 in Figure 23), the air purified by the main filter element 303 and the upstream auxiliary filter element 501 will be combined with the main airflow 202 at a relatively downstream position , and then directly flow into and pass through the auxiliary filter element 501, so that the air with pollutants can be triple-purified.

Figures 24, 25, 26, 27 and 28 show examples 16, 17, 18, 19 and 20. These five embodiments all use the hollow cylindrical main filter element 303 as shown in FIG. 8 . And includes an auxiliary filter element 502, the auxiliary filter element 502 is arranged upstream of the main filter element (such as the embodiment 16 and 18 shown in Figure 24 and 26), or downstream (the embodiment 17 shown in Figure 25) One of the positions; or both upstream and downstream two positions (as shown in Figures 27 and 28 as shown in Embodiments 19 and 20), the auxiliary filter element 502 and the main filter element 303 are arranged in series . The main air inlet air inlet 102, the side air inlet air outlet 103 and the device air inlet 101 of the device for air purification also have the following two features:

(1) Embodiments 17, 18 and 19 shown in Figures 25, 26 and 27 show that the main air inlet 102 and the side air inlet 103 originate from the same device air inlet 101;

(2) Embodiments 16 and 20 shown in FIGS. 24 and 28 show that the main air inlet 102 and the side air inlet 103 come from different device air inlets 101 respectively.

Driven by the fan 302, the main airflow drawn from upstream to downstream flows past the auxiliary filter element 502, so that at least two areas of the lower auxiliary filter element are at different air pressures, and the air with pollutants flows from the auxiliary filter element 502 to the higher air. The side of the pressure flows to the side of the lower air force, so that the polluted air can be purified. The air purified by the auxiliary filter element 502 is combined with the air purified by the main filter element 303 .

Figures 29, 30, 31, 32 and 33 show examples 21, 22, 23, 24 and 25. These five embodiments all use the hollow cylindrical main filter element 303 as shown in FIG. 8 and include an auxiliary filter element 503 . The auxiliary filter element 503 is provided with the following positions:

1. Embodiments 21 and 23 shown in Figures 29 and 31, the auxiliary filter element 503 is arranged at the front position of the air inlet surface of the main filter element, and is arranged in parallel with the main filter element

2. As shown in Figures 30 and 32 of Embodiments 22 and 24, the auxiliary filter element 503 is arranged at the rear position of the air outlet surface of the main filter element 303, and is arranged in parallel with the main filter element

3. Example 25 shown in Figure 33, the auxiliary filter element 503 is arranged at the front position of the air inlet surface and the rear position of the air outlet surface of the main filter element 303, and is arranged in parallel with the main filter element

These five examples also show the following two features:

1. Embodiments 23, 24 and 25 shown in Figures 31, 32 and 33 show that the main air inlet 102 and the side air inlet 103 originate from the same device air inlet 101;

2. Embodiments 22 and 23 shown in FIGS. 29 and 30 show that the main air inlet 102 and the side air inlet 103 come from different device air inlets 101 respectively.

Figures 34, 35, 36 and 37 show Examples 26, 27, 28 and 29. These four embodiments all use the hollow cylindrical main filter element 303 as shown in FIG. 8 . It also includes auxiliary filter elements 502 and 503. One of the auxiliary filter elements 503 is arranged in parallel with the main filter element 303, and the auxiliary filter element 503 is arranged at the front position of the air inlet surface of the main filter element 303 (embodiments 26 and 28 shown in Figures 34 and 36) Or the rear position of the air outlet surface (embodiments 27 and 29 shown in Figures 35 and 37); another auxiliary filter element 502 is arranged in series with the main filter element 303, and the auxiliary filter element 502 is arranged on the main filter element 303 upstream (Examples 26 and 27 shown in Figures 34 and 35) or downstream (Examples 28 and 29 shown in Figures 36 and 37) positions. When the fan is in operation, it drives the air flow from the upstream to the downstream of the casing, so that the side air flows through

(1) an auxiliary filter element 503 arranged in parallel with the main filter element; and

(2) Auxiliary filter element and main filter element 502 arranged in series

Both are combined with the main airflow at a downstream location and discharged, allowing the polluted air to be purified.

Figures 38, 39, 40 and 41 show Examples 30, 31, 32 and 33. These four embodiments all use the hollow cylindrical main filter element 303 as shown in FIG. 8 . It also includes auxiliary filter elements 501 and 503. One of the auxiliary filter elements 503 is arranged in parallel with the main filter element 303, and the auxiliary filter element 503 is arranged at the front position of the air inlet surface of the main filter element 303 (embodiments 30 and 32 shown in Figures 38 and 40) Or the rear position of the air outlet surface (embodiments 31 and 33 shown in Figures 39 and 41); the orientation of the assembly of the auxiliary filter element 501 can make the main air flow pass through directly. The auxiliary filter element 501 is arranged upstream (for example 30 and 31 shown in FIGS. 38 and 39 ) or downstream (for example 32 and 33 shown in FIGS. 40 and 41 ) of the main filter element 303 .

Figures 42, 43, 44, 45, 46 and 47 show examples 34, 35, 36, 37, 38 and 39. These six embodiments all use the hollow cylindrical main filter element 303 as shown in FIG. 8 . It also includes auxiliary filter elements 501 and 502. The assembly orientation of the auxiliary filter element 501 is such that the main air flow passes directly through it. The auxiliary filter element 501 is arranged between the main filter element 303 and the auxiliary filter element 502 (embodiments 34 and 36 shown in Figures 43 and 44), or the auxiliary filter element 501 is arranged between the main filter element 303 and the auxiliary filter element 502 An upstream position (Examples 34 and 38 shown in Figures 42 and 45) or a downstream position (Examples 38 and 39 shown in Figures 46 and 47) of the cartridge 502. Another auxiliary filter element 502 is arranged in series with the main filter element 303, and the auxiliary filter element 502 is arranged upstream of the main filter element 303 (embodiments 34, 35 and 39 shown in Figures 42, 43 and 47) or Downstream (Examples 36, 37 and 38 shown in Figures 44, 45 and 46) position.

Figures 48, 49, 50, 51, 52 and 53 show examples 40, 41, 42, 43, 44 and 45. These six embodiments all use the hollow cylindrical main filter element 303 as shown in FIG. 8 . It also includes auxiliary filter elements 501, 502 and 503. The assembly orientation of the auxiliary filter element 501 is such that the main air flow passes directly through it. The auxiliary filter element 501 is arranged between the main filter element 303 and the auxiliary filter element 502 (embodiments 42 and 43 shown in Figures 49 and 50), or the auxiliary filter element 501 is arranged between the main filter element 303 and the auxiliary filter element 502 The upstream position (Examples 40 and 43 shown in Figures 48 and 51 ) or the downstream position (Examples 44 and 45 shown in Figures 52 and 53 ) of the cartridge 502 . Another auxiliary filter element 502 is arranged in series with the main filter element 303, and the auxiliary filter element 502 is arranged upstream of the main filter element 303 (embodiments 40, 41 and 45 shown in Figures 48, 49 and 53) or Downstream (Examples 42, 43 and 44 shown in Figures 50, 51 and 52) position.

Fig. 54 has shown embodiment 46, described a plurality of auxiliary filter cores can be connected with each other and integrated into a total auxiliary filter core; total auxiliary filter core 504 has one or more of the following features:

Part or all of the total filter element is arranged in parallel with the main filter element;

Part or all of the total filter element is arranged in series with the main filter element;

The assembly direction of part or all of the total filter element and the main filter element can make the main airflow 202 driven by the fan 302 flow from upstream to downstream directly flow through

The present invention has more implementation methods, free transfer, device air inlet, device air outlet, main filter element, fan, and the positions of different auxiliary filter elements, as long as the side airflow passing through the main filter element is due to at least two areas of the main filter element The main airflow driven by different air pressures instead of fans flows into the spirit of this invention. This patent application is described through several specific embodiments. Without departing from the scope of this patent application, various transformations and equivalent substitutions can also be made to this patent application. In addition, various modifications can be made to this patent application for specific situations or specific situations without departing from the scope of this patent application. Therefore, this patent application is not limited to the specific embodiments disclosed, but shall include all implementations falling within the scope of the claims of this patent application.

Claims (7)

1. A method of installing a main filter element in an air purification device, the main filter element effectively purifying the air with pollutants; It is characterized in that the main filter element is set in the air purification device; the air purification device includes a housing, at least one device air inlet, at least one device air outlet, at least one main air inlet, at least one side Airflow into the air port; the air purification device is connected to another environmental device containing an exhaust fan or a blower; The connection means that the device air inlet or device air outlet of the air purification device is connected to the air inlet or air outlet of the other environmental device; The main air inlet and the side air inlet are arranged at the position of the device air inlet of the air purification device; the side air flows into the air purification device through the side air inlet; The main filter element is arranged in parallel with the fan; when the main airflow driven by the fan flows from the upstream to the downstream of the casing, it flows past at least one surface of the main filter element, so that at least two areas of the main filter element are in the Different air pressures; the side airflow passes through the main filter element and flows from the side of the main filter element with higher air pressure to the side with lower air pressure; while the environmental device becomes an air purifier, it does not affect the fan motor load of the original environmental device. 2. The installation method according to claim 1, wherein the main filter element is one of the following filter materials: Granular materials containing activated carbon, photocatalytic materials or molecular sieves, zeolite materials, or mixed with one or more types of granular mixtures above in any proportion, the granular materials are contained in ventilated containers of any shape and material load; or Adhere to ventilation materials containing activated carbon, photocatalytic or molecular sieve zeolites, or any combination of one or more in any proportion; or Adhesive honeycomb materials containing activated carbon, photocatalytic or molecular sieve zeolites, or any combination of one or more types in any proportion. 3. The installation method according to claim 1, characterized in that the main filter element is a group of purification filter elements arranged in parallel with different functions. 4. The installation method according to claim 1, wherein the main filter element is a filter element with average or uneven thickness, and when the main filter element is a filter element with average thickness, the longitudinal section of the main filter element The contour lines of the air inlet surface and the contour lines of the air outlet surface are arranged in parallel; when the main filter element is a filter element with uneven thickness, the contour lines of the air inlet surface and the air outlet surface of the longitudinal section of the main filter element are non-parallel arrangement. 5. The installation method according to claim 1, wherein the main filter element is a hollow columnar filter element, and the hollow direction of the columnar filter element is arranged in parallel with the direction of the main airflow. 6. The installation method according to claim 1, wherein when the main filter element is a hollow cylindrical filter element, when the main air flow flows from the upstream to the downstream in the housing, the main air flow is one of the following or multiple paths flow through: Only flow through the inner surface area of the hollow cylindrical filter element; Only flow through the outer area of the hollow cylindrical filter element; At the same time, it flows through the inner surface area and the outer surface area of the hollow cylindrical filter element. 7 . The installation method according to claim 5 , wherein the air inlet surface and the air outlet surface of the main filter element are respectively located on at least one of the inner wall surface and the outer wall surface of the hollow columnar filter element.