WO2017063557A1

WO2017063557A1 - Air purification device and system

Info

Publication number: WO2017063557A1
Application number: PCT/CN2016/101893
Authority: WO
Inventors: Paul Yiu Shum KO
Original assignee: Ko Paul Yiu Shum
Priority date: 2015-10-14
Filing date: 2016-10-12
Publication date: 2017-04-20
Also published as: CN208998209U

Abstract

An air purification device includes a single body module (10) which is capable to purify the air by removing a specific targeting type of pollutant at a specific air flow rates at a specific time. Multiple of the body modules (10) can be piled up and stacked together to form the air purification device and system. An air purification method is also provided.

Description

AIR PURIFICATION DEVICE AND SYSTEM

FIELD OF THE TECHNOLOGY

The present invention is related to an air purification device and system. More specifically, it is related to an air purification device and system preferably be applied in hospitals and/or clinics for creating a dust-free environment. It can also be used in the home of the asthma patient, where the level of particulate matters need to be strictly controlled. The present invention provides an effective method to remove PM2.5 and/or PM10, especially at the breathing zone of an environment.

BACKGROUND OF THE DISCLOSURE

As the indoor air quality are of more concerned by the public, air purifiers or filtering devices become almost an essential electrical appliance at home. They are especially in need by the users who are allergic to particulate matters or volatile organic compounds. While various different types of air purifier with different filtering mechanisms are available in the market, the consumers can select the suitable air purifiers according to their needs. Serving room size and the types of pollutant to be removed as specified by the manufacturer are usually the common criteria to be considered when the purchasing the air purifier.

Nevertheless, the conventional market available air purifiers are usually lack of flexibility to upgrade/extend and/or downgrade if the consumers wish to be shifted between areas of different room size or pollutant sources on using the air purifier.

Furthermore, most market available product consists of a fan or blower, where a single airflow rate is generated to draw or blow the air through different layers of filters within the air purifier. For the facts that these filters are usually stacked in series manner, a specific airflow rate for a specific type of filter can never be accommodated, thus, the performance of air purification by each filter can never been optimized.

Apart from the above, the production of air purifier is costly, as the manufacturers will need rather high capital investment to develop and manufacture air purifiers of different models bearing different physical dimension, performance capability and functionality.

SUMMARY

The present invention provides an air purification device and system, when the air purification device and system is assembled by comprising a single body module, it is capable to purify the air and remove a specific targeting type of pollutant at a specific air flow rates at a specific time. When multiple of body modules are piled up and stacked together to form the air purification device and system, it is capable to purify the air by removing different specific targeting types of pollutant at different airflow rates at a specific time.

More importantly, the invention presents a flexible method for assembling multiple units of body modules, so that the orientation of the air flow can be modified instantly subjected to the different application of the environment. In one orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the air inlet of upper body module is perpendicular to the air outlet of the adjacent lower body module； in another orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the air inlet of upper body module is same direction to the air outlet of the adjacent lower body module. On arranging the orientation of the body modules when they are being stacked together； and/or allowing the fan or blower within each body modules to operate at different air flow rate； and/or putting different type of air filters for removal of different type of pollutants into different body modules in the air purification device and system； and/or turning the direction of the air grill which is equipped at the air inlet and or air outlet of the body modules, the air purification device and system is having unlimited ways of assembling, unlimited variation of capacities, for removing different types of pollutants at different levels.

Apart from saving the room space, the air purification device and system further provides the following advantages:

(a) The capacity of the air purifier is flexibly to be upgraded or to be downgraded instantly according to the occupant’s need and/or the changes of the environmental condition, simply by addition or subtract any of the body module from the air purification device and system which comprising a multiple of body modules.

(b) Different body modules are flexible to be swapped within the air purification device and system such that a specific sequence of body modules will be tailored formed. The tailored formed sequence reduces different pollutants within the environment at a specific manner.

(c) Different types of air filter can be installed at different body modules within the air purification device and system, the performance of different air filters will be optimized as the airflow rates and speeds of fan can be operated for those different air filters at the same time.

(d) The airflow rates and speeds of fan are programmable so that they can be simultaneously to be operated differently at different specific time.

(e) Subjected to the levels of different pollutants in the environment, the airflow rates of different body modules within the air purification device and system can be programmed to operate at different air flow rates to prevent some filters from contamination by the undesirable pollutants. For example, when the level of certain pollutant is rather high and up to a level that will damage certain kind of filter, the airflow rate and speed of fan of the corresponding body modules can be adjusted to slow down or stop, to prevent the undesirable pollutants passing through that filter. Thus, filter life can therefore be extended.

(f) The horizontal and the vertical positions as well as the orientations of the air inlets and air outlets of the body modules within the air purification device and system are flexible to be altered instantly, by simply swapping the body modules, or rotate a body module against the neighbor body module.

The invention can be executed in the following way:

An air purification device and system, comprises at least one body module；

the body module further comprises: at least one air inlet, at least one air outlet, at least one air filter, at least one fan； wherein at least one air inlet (vertical air inlet) and at least the air outlet (vertical air outlet) are located at two different vertical sides the body module；

when one body module is operated alone, it is acting as a basic air purification unit (single-unit-device) ； multiple units of body modules are flexible to be stacked and fastened together, a multiple air purification units (multiple-unit-device) is formed；

the single-unit-device is capable to purify at least one particular type of air pollutant by a specific airflow rate； when the multiple-unit device is in operation, the multiple-unit-device is capable to purify different types of air pollutants simultaneously by different specific airflow rates；

the vertical air inlet and the vertical air outlet within the same body module is in perpendicular relationship when they are viewed from the top view of the body modules； on being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of upper body module is perpendicular to the vertical air outlet of the adjacent lower body module

An air purification device and system of the present invention, in one orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of upper body module is perpendicular to the vertical air outlet of the adjacent lower body module； in another orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of upper body module is same direction to the vertical air outlet of the adjacent lower body module.

The air purification device and system, further comprises:

(a) a top module； the top module means to place on top of the body module, the top module may further comprise at least one air outlet；

(b) a base module； the base module means to act as a support for the body module to stand on； the body module may further comprise of caster wheels for stand on floor；

the body module is flexible to be stacked and fastened between one top and one base modules； when one body module being stacked and fastened between one top and one base modules, the a complete single-unit-device is formed； when more than one body modules are stacked and fastened together in between one top and one base modules, the complete multiple air purification units (multiple-unit-device) is formed.

The air purification device and system of the present invention, wherein the body module, and/or top module and/or the base module comprises a casing, the casing are fabricated from panels joined by metal or plastic extrusions, molded plastic, or metal, the corners of fabricated cases are reinforced with stamped sheet steel case corners.

The air purification device and system of the present invention, wherein casings for flight case or road case will be employed for fabricate the casings of the top, base and body modules.

The air purification device and system wherein the body module is in the shape of rectangular or square block, comprising an outer dimension of height, length and width； the length and width are of same size (length) ； when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other even if any one of them being rotated by an angle of 90 degree.

The air purification device and system wherein the body module is in the shape of circular cylinder, comprising an outer dimension of height and the circular base area； when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other by their circular base areas even if any one of them being rotated by an angle of any degree.

The air purification device and system wherein the body module is in the shape of cylinder, comprising an outer dimension of height and the base area； when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other by their base areas even if any one of them being rotated by an angle of specific degree.

The air purification device and system of the present invention, wherein the multiple-unit device further comprises air grill for each vertical air inlet and vertical air outlet of the multiple units of the body modules； the air grills are in the same orientation, directing air surrounding the air purification device (the multiple-unit device) to flow conclusively in one direction, longitudinally along the stacked body modules； thus, the air surrounding the air purification device (the multiple-unit device) is flowing from an upstream to a downstream position conclusively.

The air purification device and system of the present invention, wherein in the body module of the multiple-unit-device located at the more upstream position will be equipped with air filter for particle phase pollutant removal, while the body module at the more downstream position will be equipped with air filter for gases phase pollutant removal.

For example, in one embodiment, the HEPA filter was employed for particle phase pollutant removal, and an activated carbon filter, which is for adsorption of the gases molecules, will be employed for gases phase pollutant removal. The polluted air which contains gases phase pollutants and particle phase pollutants will be drawn into the air inlets of both the upstream and downstream body modules simultaneously at the same specific time according to the following process:

(a) The upstream body modules will filter the particle phase pollutants, the cleaned air (the air with of particulate matters level reduced) emitted from the air outlet of the upstream body module will combined with the polluted air in the environment；

(b) The downstream body modules will filter gases phase pollutants, the cleaned air (the air with of gases phase pollutant level reduced) emitted from the air outlet of the downstream body module will combined with the polluted air in the environment；

(c) As the air outlet of the upstream body module is closed to the air inlet of the downstream body module, the air there nearby (at the air inlet of the downstream body module) contains a significant portion air mixtures, comprising the polluted air being mixed and diluted by the purified and cleaned air (the air with of particulate matters level reduced) , which emitted from the air outlet of the upstream body modules.

(d) When the concentration of particle phase pollutant and gases phase pollutant were detected to be of high level, and in particular, if the air containing such high level of particle phase pollutant, when being forced to pass through the activated carbon filter, the particle phase pollutants will damage the activated carbon filter by deposits particle phase pollutant on the surface of the activated carbon filter, causing the clogging on the adsorption surface of activate carbon, preventing the carbon filter from future gases molecule adsorption. In such case, the airflow rate and speed of fan of the body modules containing the filter for gases phase pollutant removal (in this case, the activate carbon filter) can be programmed to slow down or even stop. The undesirable pollutant (the particle phase pollutant) will pass through only the particle removal filter or HEPA filter until it is reached to a satisfactory level. Thus, filter life (the activated carbon filter in this case) can therefore be extended.

The air purification device and system of the present invention, herein the different body modules within the multiple-unit-device are equipped with particulate removal filters of different grade to remove of particulate matters of different physical dimension.

The air purification device and system of the present invention, wherein the body module of the multiple-unit-device at the more upstream position will be equipped with air filter for larger dimension particulate matters, while the body module at the more downstream position will be equipped with air filter for filtering smaller dimension particulate matters.

For example, in one embodiment of a multiple-unit-device, it comprises a top module, two body modules and a base module, the first body module, which is located at the more upstream position in compared to the second body module, is equipped with a particle filter for removing the particulate matters under 10 μm, the second body module is equipped with a particle filter for removing the particulate matters in dimension under 2.5 μm.

In such way, the polluted air which contains particulate matters in the physical dimensions of under 2.5 μm and 10 μm will be drawn into the air inlets of both the upstream and downstream body modules simultaneously at the same specific time according to the following process:

(a) The upstream body module filters the particulate matters in dimension under 10 μm, the cleaned air emitted from the air outlet of the upstream body module will combined with and dilute the polluted air in the environment；

(b) The downstream body modules will filter the particulate matters in dimension under 2.5 μm, the cleaned air emitted from the air outlet of the downstream body module will combined and dilute with the polluted air in the environment；

(c) The cleaned air emitted from air outlets of both the upstream and downstream body modules will be return to the environment, however, it will probably be recirculated to both the upstream and downstream body modules for further cleaning, if the environment is a semi-enclosed or completely enclosed environment.

(d) As the air outlet of the upstream body module is closed to the air inlet of the downstream body module, the air there (at the air inlet of the downstream body module) nearby contains a significant portion air mixtures, comprising the polluted air being mixed and diluted by the purified and cleaned air, which emitted from the air outlet of the upstream body modules.

(e) The air being drawn into the air inlet of the downstream body module for purification will contains less amount of particulate matter in the physical size of 10 m. The filter at the downstream body module, which is designed specifically for removing particulate matters in the physical dimensions of under 2.5 μm will be prevent from being clogged, or wasted on filtering the larger size particulates.

Through the manipulating of the orientation of air inlet and air outlet of different body modules in the air purification device and system； and though the isolation operation each air flow to pass through different air filters which are located at different body modules in the air purification device and system； the efficiency of the air purification can always be maximized cost effectively and immediately, at any time and any condition, without further purchasing or employing a complete new set of air purification device and system.

The air purification device and system of the present invention, wherein each body module within the multiple-unit-device is equipped with the air filter which either for particle phase pollutant removal or for gaseous phase pollutant removal.

The air purification device and system of the present invention, wherein the air filter being installed to cover the air inlet and/or the air outlet.

The air purification device and system of the present invention, wherein the air filters being installed in different body modules within the multiple-unit-device may be of the same type or different types.

The air purification device and system of the present invention, wherein the fans in each body module within the multiple-unit-device are operated at different air flow rates for the purpose to achieve the optimal performance corresponding to type of air filter which is equipped within the corresponding body module. For example, in another embodiment where it is a multiple-unit-device is to be mentioned. It comprises one top module, two body modules and one base module, the first body module is equipped with a particle filter for removing the particulate matters in dimension under 10 μm (PM10) , the second body module is equipped with a particle filter for removing the particulate matters in dimension under 2.5 μm (PM2.5) . When the environment is detected to be of higher PM10 level in compared to PM2.5 level by a PM10 and a PM2.5 sensors, the air flow rate in the first body modules will be operated at a higher speed in compared to the second body modules. In such way, the removal of the PM10 will be in advanced over the PM2.5, preventing the larger size particulate from damage or clogging the finer particle filter in the second body module, and preserve the life of the finer particle filter in the second module which is designed specifically for remove the finer particulates (in this case, the PM2.5) . When the level of the PM10 reaches to a satisfactory level, which is non-harmful to the PM2.5 filter, the air-flow rate of the first body modules will then be adjusted to a lower speed.

The air purification device and system of the present invention, further comprises a

a central processing unit, and

a sensor for measurement the level of the particulate matter in the environment where the air purification device and system operating；

The air purification device and system of the present invention, wherein further comprises at least one air quality sensor, the air quality sensor provide the information on at least one level of air quality parameter, which further be employed to control the speed of the fan of the body modules.

The air purification device and system of the present invention, wherein the air quality sensor being integrated into the top, the body or the base modules.

The air purification device and system of the present invention, wherein the air quality sensor being installed in a separate casing, it is being power supported by an individual power supply； the signal from the sensor is transferred to control the speed of fan by a wiring or a wireless method.

The air purification device and system of the present invention, wherein the air quality sensor detect at least one of the following pollutant levels: the particulate matter with a specific physical dimension, volatile organic compounds, formaldehyde, nitrogen oxides, ozone, carbon monoxide, carbon dioxide, sulfur oxides, airborne bacteria, fungi.

The air purification device and system of the present invention, wherein the air quality sensor will able to detect the particulate matters with size under 10μm, and/or particulate matters with size under 2.5μm and/or particulate matters at pollen size.

The air purification device and system of the present invention, wherein the air quality sensor detects at least one of the following physical air quality parameter of air: temperature, relative humidity, air movement.

The air purification device and system of the present invention, wherein the air purification device and system further comprises at least one occupant sensor, the information on the number of occupant will be further be employed to control the speed of the fan.

The air purification device and system of the present invention, wherein the air quality sensor comprises a particle sensor and/or a gases sensor.

The air purification device and system of the present invention, wherein the fans in different body modules within the multiple-unit-device are operated at different air flow rates according to the levels of the particle phase and/or gases phase pollutant measured by the particulate sensors and/or a gas sensors.

The air purification device and system of the present invention, wherein when the different body modules and/or the top and the base modules when being stacked and fastened together, they are fastened and be connected by at least one connecting component； wherein the connecting component comprises a buckle in two parts form； a protruded part and a recessed part； the protruded part of the buckle is positioned at one module, it is fitted to the recessed parts of the buckle of which is positioned at another module.

The air purification device and system of the present invention, wherein when a partition will be employed to be placed between each two body modules within the multiple-unit-device.

The air purification device and system of the present invention, wherein the complete multiple-unit-device is flexible to be dissembled and be converted to more than one complete single-unit-device on addition of top and base modules； vice versa, more than one complete single-unit-device are flexible to be converted to a complete multiple-unit-device by stacking and fasten together the body modules between one top and one base modules, and subtracting the extra top and base modules.

The air purification device and system of the present invention, wherein the sequences of the body modules within the multiple-unit-device are tailored designed for various environment and condition, per the concentration of the pollutants obtained by the any of the mentioned sensor (s) . For example, in a newly traditional Chinese renovated room where incense will be burnt at an upper position and where glue are used as the adhesive for the carpet. The body module with gas filter in the type of gases phase pollutant removal will be placed at the lower position which is more near to carpet, the sources of gases phase pollutant, the body module with the particle phase pollutant filter will be placed at the upper position, which is more near to the burning incense, to remove the particulate matter generated from the burning incense.

The air purification device and system of the present invention, wherein a pre-filter for removing the large size particulates is installed at the air-inlet of the air purification device and system.

The air purification device and system of the present invention, wherein the fan is a centrifugal fan or a blower； the fan contains an isolate casing to house the blade within the body modules. [SO]

The air purification device and system of the present invention, wherein the air filter is a filter for removing the particle phase pollutant, it is placed downstream of the fan.

The air purification device and system of the present invention, wherein the air filter is a filter for removing the gases phase pollutant, it is placed downstream of the fan.

In one embodiment, the historical fan speeds against the level of particulate matter at different time interval in the single-unit-device and/or the multiple-unit-device are recorded by the central processing unit；

In one embodiment, if the level of the of particulate matter in the environment where the air purification device and system operating is not improved as compared to the historical fan speeds as recorded, the central processing unit presume some abnormal burning activities is happened within the environment, the central processing unit will send out warning signal an alarm system and/or a user communication device to warn the user.

In one embodiment, the air purification device and system, comprising at least three casing modules:

a top module, the casing of the top module is in a planer form or as an upside-down barrel form with one end being opened；

a base module, the casing of the base module is in a planer form or as a barrel form with one end being opened；

a body module； the casing of the body module is in a hollow tubular form or as a barrel with two ends opened.

the body module further comprises:

at least one air inlet, positioned on the casing,

at least one air outlet, positioned on the casing,

at least one air filter, for removing at least one type of pollutant in air being installed in any part of the body module；

at least one fan, being installed between the air inlet and air outlet and/or being installed between the two ends of the casing, the airflow generated by the fan is drawn to pass through the air filter directly.

When one body module being stacked and fastened between one top and one based modules, an air purification device and system comprising a basic air purification unit (single-unit-device) is formed, the single-unit-device is capable to purify at least one particular type of air pollutant by a specific airflow rate at a specific time.

When more than one body modules are stacked and fastened together in between one top and one base modules, an air purification device and system comprising multiple air purification units (multiple-unit-device) is formed； the multiple-unit-device is capable to purify different types of air pollutants simultaneously, each type of air pollutant by the specific air filter at the specific airflow rate, within the corresponding body module, at a specific time.

The body modules within the multiple-unit-device bearing a more upstream air-inlet will be regarded as the body module at the upstream position.

In one embodiment, the top module further comprises at least one air outlet.

In one embodiment, the base module further comprises at least one air outlet.

A method for assembling an air purification device and system is presented in the present invention, wherein the air purification device and system comprising multiple units of body modules；

the body module further comprises: at least one air inlet, at least one air outlet, at least one air filter, at least one fan； wherein at least one air inlet (vertical air inlet) and at least the air outlet (vertical air outlet) are located at two different vertical sides the body module； the vertical air inlet and the vertical air outlet within the same body module is in perpendicular relationship when they are viewed from the top view of the body modules；

the multiple units of body modules are flexible to be stacked and fastened together, to form a multiple air purification units (multiple-unit-device) ；

in one orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of one body module is perpendicular to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules；

in another orientation, the vertical air inlet of one body module is different direction to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules；

in another orientation, the vertical air inlet of one body module is same direction to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules.

A method for assembling an air purification device and system is presented, wherein the fan or blower within each body modules to operate at different air flow rate.

The method for assembling an air purification device and system is presented, wherein different type of air filters for removal of different type of pollutants are disposed into the different body modules in the air purification device and system.

The method for assembling an air purification device and system is presented, wherein the direction of the air grill which is equipped at each the air inlet and or air outlet of the body modules.

The air purification device and system of the present invention, wherein it is tailored made or manufacturing with appropriate sizes and capacities for application in the market of consumer household, commercial, cabinet inside the aircraft and/or vehicle, and/or construction market.

The air purification device and system of the present invention, wherein it is integrated or applied in co-ordination with appropriate medical or health caring equipment for application in healthcare center, especially for the pregnancy women, children and elderly people.

The air purification device and system of the present invention, wherein the body module (s) of the present air purification device and system can be further equipped with the air filter for particularly remove the flour, and wood saw, coal dust for application in the flour and wood saw mill, coal mine industries.

The air purification device and system of the present invention, wherein air filter are specific type of filter for the removal of the dust mites； or they are air filter specific for patient who got problem in asthma, anaphylaxis, urticarial, eczema problem.

The air purification device and system of the present invention, , wherein it is operation in coordination with and or health caring and monitoring device and/or system specific for the patient who got problem in asthma, anaphylaxis, urticarial, eczema problem.

The air purification device and system of the present invention, wherein it is further modified and applied as all home appliance for different purposes； the present a purification device and system is being modified so that it can be for uses as/for used with air conditioner, vacuum cleaner, exhaust fan, ventilation fan, to improve the overall air quality or thermal conform of the environment.

The air purification device and system of the present invention, wherein it comprises (a) a central processing unit； and (b) at least one sensor of particulate matter, which is built-in or remote from the unit, and be employed to act as a device of as early fire warning system.

The air purification device and system of the present invention, the historical air flow rates and speeds of fan in by each individual body module (s) against the corresponding levels of particulate matter (s) in the environment as detected by the sensor (s) at various time interval of the present air purification device and system are recorded and stored in the central processing unit； on the operation of the present air purification device and system, if the level of the particulate matter keep increasing, or keep sustaining, or the level of particulate matter decrease at abnormally slow, or the level of particulate matter does not improved at an expected rate, when in comparing to the historical data, the central processing unit may presume some fire incident or abnormal burning activities is happened around, the central processing unit will send out warning signal, either in form or wiring or wireless data transferring mode, to an alarm system, or any user communication interface, alerting the users of its abnormal condition.

The present air purification device and system will be tailored made with specific filter for the removal of the oil mist, oil aerosol and food odor generated from cooking activities in kitchen or restaurant.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 indicates the schematic diagram of a basic air purification unit (single-unit-device) .

Figure 2 indicates the schematic diagram of an air purification device and system comprising multiple air purification units (multiple-unit-device) in one orientation by the arrangement of the body module.

Figure 3 indicates the schematic diagram of an air purification device and system comprising multiple air purification units (multiple-unit-device) in another orientation by the arrangement of the body module.

Figure 4 indicates a flow chart of control the fan speeds of different body modules in one multiple-unit-device in one embodiment.

Figure 5 indicates a basic programming flowchart when the present a purification device and system being employed to act as a device of employed as early fire warning system.

DESCRIPTION OF EMBODIMENTS

Figure 1 indicates an air purification device and system 10, comprising at least three casings modules: a top module, a base module and a body module.

The casing of the top module 100 is in an upside-down barrel form with one end opened； the casing of the base module 300 is in a barrel form with one end opened； the casing of the body module 200 is in a hollow tubular form or as a barrel with two ends opened. The one end opening of the top module stack and be fastened by a connector 101 to the one end opening of the body module, the one end opening of the base module stack and be fastened by another connector 201 to the other end opening of the body module. A complete single-unit-device 10 is formed.

As illustrated from the Figure 1, the body module comprises: two air inlet 210, two air outlet 220, air filter to be placed and cover the air outlet, pre-filter to be placed and cover the air inlet, one fan for put inside the body module； wherein the air inlet (vertical air inlet) and the air outlet (vertical air outlet) are facing two orientations (see the arrows showing the directions of orientations 1000 and 2000) , located at two different vertical side of the body modules. The vertical air inlet and the vertical air outlet within the same body module is in perpendicular relationship when they are viewed from the top view of the body modules (see the position of eye at 3000.

In one embodiment, the body module further comprises two (in the front and back) air inlet 210 on the casing of the body module200, two air outlet (left and right) 220 on the casing of the body module 200, air filter for removing at least one type of pollutant in air, the air filter being installed within the body module 200； acentrifugal fan with an isolate casing to house the blade and the motor is being installed between the air inlet 210 and air outlet 220 within the body module 200, and the airflow generated by the fan or blower pass through the air filter directly.

The top module further comprise one air outlet 110 on it casing. A sensor 401 is being installed on the body module to monitor the level of the air quality and for adjust the speed of the fan.

When one body module 200 being stacked and fastened between one top and one based modules 100 &300, an air purification device and system comprises a basic air purification unit (single-unit-device) is formed, the single-unit-device is capable to purify at least one particular type of air pollutant by one airflow rate at a specific time.

The base unit further comprises four caster wheels 310.

Figure 2 indicates the schematic diagram of an air purification device and system20 comprising multiple air purification units (multiple-unit-device) . The top module, base module and the bodies modules basically the same type of modules as illustrated in the Figure 1. In this embodiment, three

body modules

200A, 200B and 200C are stacked and fastened together in between one top 100 and one base 300 modules. An air purification device and system, a complete multiple air purification units (multiple-unit-device) is formed. The multiple-unit-device is capable to purify different types of air pollutants at different airflow rate at a specific time.

For example, in the application of the 3-body-modules of this embodiment, the first body module 200A is equipped with a particle filter (e.g., HEPA filter of grade H10) for removing the particulate matters in dimension under 10 μm (PM10) , the second body module 200B is equipped with a particle filter (e.g., HEPA filter of grade H12) for removing the Particulate Matters in dimension under 2.5 μm (PM2.5) , the third body module 200C is equipped with a gases pollutant removal filter (such as activated carbon filter) for removing the volatile organic compounds

The multiple-unit-device 20 is flexible to be dissembled and be converted to more than one single-unit-device 10 as indicated in Figure 1 on addition of top 100 and base 300 modules； vice versa, more than one single-unit-device 10 as indicated in Figure 1 are flexible to be converted to a multiple-unit-device 20 as indicated in Figure 2 by stacking and fastening together the

body modules

200A, 200B, 200C between one top 100 and one base 300 modules, and subtracting the extra top 100 and base 300 modules.

Figures 2 also illustrates an orientation of different multiple body modules, when being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of upper body module is perpendicular to the vertical air outlet of the adjacent lower body module when they are viewed from the top view of the body modules (see the position of eye at 3000) . See the arrows showing the showing directions of

orientations

1000 and 2000, representing the orientations of the vertical air inlet and vertical air outlet respectively.

Figure 3 illustrate another assembling method, taken from all the modules as illustrated in the Figure 2, but in another orientation of different multiple body modules. When these multiple body modules (200A, 200B, 200C) are stacked and fastened together to form a multiple-unit-device 30, the vertical air inlet of upper body module is same direction to the vertical air outlet of the adjacent lower body module when they are viewed from the top view of the body modules (see the position of eye at 3000) . See the arrows showing the showing directions of

orientations

Figure 2 and Figure 3 also illustrates a method for assembling an air purification device and system is presented in the present invention, wherein the air purification device and system comprising multiple units of body modules； the

body module

200A, 200B, 200C (as illustrates as the body module 200 in Figure 1) comprises: two air inlets 210, two air outlets 220, air filters, fan； wherein at least the air inlet 210 (vertical air inlet 210) and at least the air outlet220 (vertical air outlet220) are located at two different vertical sides the body module 220 220A 200B 200C ； the vertical air inlet 210 and the vertical air outlet 200 within the same body module is in perpendicular relationship when they are viewed from the top view of the body modules； the multiple units of body modules are flexible to be stacked and fastened together, to form a multiple air purification units (multiple-unit-device) ；

in one orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of one body module is perpendicular to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules, as that indicated in Figure 2.

In another orientation, the vertical air inlet of one body module is different direction to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules, as that indicated in Figure 3.

in another orientation, the vertical air inlet of one body module is same direction to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules, as that indicated in Figure 3.

When the body modules within a multiple-unit-device houses different type of air filter, for example, one body module houses the gaseous removal filters； and the adjacent module houses a particulate removal filter, it is preferable to have the multiple units of body modules be stacked as in the way shown in Figure 3. This will enhanced the air purification performance for various types of pollutants at short instance. With the body modules as arranged shown in Figure 3, as the purified air (which output by one type of filter in one body modules) will be immediately be in-taken to the neighborhood body module for removal of another type of pollutants.

When all the body modules of the multiple-unit-device houses the same type of air filter, for example, all body module houses the particle phase removal filters； it is preferable to have the multiple units of body modules be stacked as in the way shown in Figure 2. The air inlet and outlet of the adjacent body modules are distributed more apart； the purified air will flow to the surround at different direction instantly. Further, this arrangement of air inlet and air outlet of the body modules would reduce the chance of airflow short circuit. The removal of particular type of pollutants by same type of filter will become more cost effectively.

It should also be noted that the body module may be in any one of the following shape, it is :

(a) in the shape of rectangular or square block, comprising an outer dimension of height, length and width； or

(b) in the shape of circular cylinder, comprising an outer dimension of height and the circular base area；

(c) in the shape of cylinder, comprising an outer dimension of height and the base area；

Figures 2 and 3 indicated that the body modules is in a rectangular or square block, comprising an outer dimension of height, length (L) and width (W) ；

The dimension of the length (L) is equal to the dimension of the width (W) ； i.e., L＝W

when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other by their base areas even if any one of them being rotated by an angle of 90 degree.

the length and width are of same size (length) ； when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other even if any one of them being rotated by an angle of 90 degree.

The method for assembling an air purification device and system illustrated in Figure 2 and Figure 3, wherein the fan or blower within each body modules to operate at different air flow rate.

The method for assembling an air purification device and system illustrated in Figure 2 and Figure 3, wherein different type of air filters for removal of different type of pollutants are disposed into the different body modules in the air purification device and system.

The method for assembling an air purification device and system illustrated in Figure 2 and Figure 3, wherein the direction of the air grill which is equipped at each the air inlet and or air outlet of the body modules.

Through the manipulating of the orientation of air inlet and air outlet of different body modules in the air purification device and system； and though the isolation operation each air flow to pass through different air filters which are located at different body modules in the air purification device and system； the efficiency of the air purification can always be maximized cost effectively and immediately, at any time and under any condition, without further purchasing or employing a complete new set of air purification device and system.

Figure 4 indicates a basic programming flowchart when the present a purification device and system being employed to act as a device of employed as early fire warning system.

In this embodiment, the air purification device and system comprises (a) central processing unit； and (b) at least one sensor of particulate matter, which is built-in or remote from the unit, will further be employed to act as a device of employed as early fire warning system.

The historical air flow rates and speeds of fan in by each individual body module (s) against the corresponding levels of particulate matter (s) in the environment as detected by the sensor (s) at various time interval of the present air purification device and system are recorded and stored in the central processing unit. On the operation of the present air purification device and system, if the level of the particulate matter keep increasing, or keep sustaining, or the level of particulate matter decrease at abnormally slow, or the level of particulate matter does not improved at an expected rate, when in comparing to the historical data. The central processing unit may presume some fire incident or abnormal burning activities are happened around. The central processing unit will send out warning signal, either in form or wiring or wireless data transferring mode, to an alarm system, or any user communication interface, alerting the users of its abnormal.

Figure5 indicates a flow chart of control the fan speeds of different body modules in one multiple-unit-device in one embodiment.

Sensors (PM2.5 and PM10 Sensors) for monitoring and detect the levels of the particulate matters in the physical dimensions of under 2.5 μm and 10 μm are employed. The program to control the air flow by sensors is illustrated in one embodiment of which a multiple-unit-device comprises a top module, two body modules and a base module. The first body module, which is located at the more upstream position in compared to the second body module, is equipped with a particle filter for removing the particulate matters under the physical dimension of 10μm； the second body module is equipped with a particle filter for removing the particulate matters in physical dimension under 2.5 μm.

In such way, the polluted air which contains particulate matters in the physical dimensions of under 2.5 μm and 10 μm will be drawn into the air inlets of both the upstream and downstream body modules simultaneously at the same specific time according to the following process which being set as a program in a central processing unit (CPU) of the air purification device and system:

1. When the concentration of the particulate matters under 10 μm measured by a PM10 sensor (sensor for measuring the particulate matters under 10 μm) is found to be higher than the particulate matters under 2.5 μm measured by a PM2.5 sensor (sensor for measuring the particulate matters under 10 μm) .

2. The Central Processing Unit (CPU) of the control system of for the fans of different module will instruct the upstream module to operate the fan at a higher flow rate, and the downstream module to operate the fan at a lower flow rate.

3. The upstream body module filters the particulate matters in dimension under 10 μm at high air flow rate /fan speed, the cleaned air emitted from the air outlet of the upstream body module will be combined with and dilute the polluted air in the environment.

4. The downstream body modules will filter the particulate matters in dimension under 2.5 μm at lower or almost stop air flow rate /fan speed.

5. When the concentration of the particulate matters under 10 μm measured by the PM10 sensor up to a level, which is almost the equivalent to the level of the particulate matters under 2.5 μm measured by a PM2.5 sensor； which implied that the environment is now contaminated with particulate matters under 2.5 μm, the air flow rate /fan speed of the upstream body module will slow down and the air flow rate /fan speed of the downstream body module will increase.

There are more embodiments for the present invention. In any case, the positions of the air inlet of the apparatus, the air outlet of the apparatus, the filter, the fan and the various positions of the filter (s) may be arbitrary modified. Whenever it is the case that more than one body modules are stacked and fastened together in between one top and one base modules, the air purification device and system comprising multiple air purification units, and it is for the purpose to purify different types of air pollutants simultaneously, each type of air pollutant by the specific air filter at the specific airflow rate, within the corresponding body module, at a specific time； it will fall into the spirit of the present invention.

It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the scope or spirit of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects illustrative and not restrictive.

Claims

An air purification device and system, comprising at least one body module；

wherein the body module further comprises: at least one air inlet, at least one air outlet, at least one air filter, at least one fan； wherein at least one air inlet (vertical air inlet) and at least the air outlet (vertical air outlet) are located at two different vertical sides the body module；

when one body module is operated alone, it is acting as a basic air purification unit (single-unit-device) ； multiple units of body modules are flexible to be stacked and fastened together, a multiple air purification units (multiple-unit-device) is formed；

the single-unit-device is capable to purify at least one particular type of air pollutant by a specific airflow rate； when the multiple-unit device is in operation, the multiple-unit-device is capable to purify different types of air pollutants simultaneously by different specific airflow rates；

the vertical air inlet and the vertical air outlet within the same body module is in perpendicular relationship when they are viewed from the top view of the body modules.
The air purification device and system according to claim 1, wherein in one orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of upper body module is perpendicular to the vertical air outlet of the adjacent lower body module； in another orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of upper body module is same direction to the vertical air outlet of the adjacent lower body module.
The air purification device and system according to claim 1, wherein the body module is in the shape of rectangular or square block, comprising an outer dimension of height, length and width； the length and width are of same size (length) ； when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other even if any one of them being rotated by an angle of 90 degree.
The air purification device and system according to claim 1, wherein the body module is in the shape of circular cylinder, comprising an outer dimension of height and the circular base area； when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other by their circular base areas even if any one of them being rotated by an angle of any degree.
The air purification device and system according to claim 1, wherein the body module is in the shape of cylinder, comprising an outer dimension of height and the base area； when multiple units of the body module is placed upright with its the height and being piled up and stacked together, the upper and the lower body modules will well fit with each other by their base areas even if any one of them being rotated by an angle of specific degree.
The air purification device and system according to claim 1, further comprising:

(a) a top module； the top module means to place on top of the body module, the top module may further comprise at least one air outlet；

(b) a base module； the base module means to act as a support for the body module to stand on； the body module may further comprise of caster wheels for stand on floor；

wherein the body module is flexible to be stacked and fastened between one top and one base modules； when one body module being stacked and fastened between one top and one base modules, the a complete single-unit-device is formed； when more than one body modules are stacked and fastened together in between one top and one base modules, the complete multiple air purification units (multiple-unit-device) is formed.
The air purification device and system according to claim 1 or 2, wherein the body module, and/or top module and/or the base module comprises a casing, the casing are fabricated from panels joined by metal or plastic extrusions, molded plastic, or metal, the corners of fabricated cases are reinforced with stamped sheet steel case corners.
The air purification device and system according to claim 7, wherein casings for flight case or road case will be employed for fabricate the casings of the top, base and body modules.
The air purification device and system according to claim 1, wherein the multiple-unit device further comprises air grill for each vertical air inlet and vertical air outlet of the multiple units of the body modules； the air grills are in the same orientation, directing air surrounding the air purification device (the multiple-unit device) to flow conclusively in one direction, longitudinally along the stacked body modules； thus, the air surrounding the air purification device (the multiple-unit device) is flowing from an upstream to a downstream position conclusively.
The air purification device and system according to claims 1 or 9, wherein in the body module of the multiple-unit-device located at the more upstream position will be equipped with air filter for particle phase pollutant removal, while the body module at the more downstream position will be equipped with air filter for gases phase pollutant removal.
The air purification device and system according to claims 1 or 9, wherein the body module of the multiple-unit-device at the more upstream position will be equipped with air filter for larger dimension particulate matters, while the body module at the more downstream position will be equipped with air filter for filtering smaller dimension particulate matters.
A method for assembling an air purification device and system, wherein the air purification device and system comprises multiple units of body modules；

the body module further comprises: at least one air inlet, at least one air outlet, at least one air filter, at least one fan； wherein at least one air inlet (vertical air inlet) and at least the air outlet (vertical air outlet) are located at two different vertical sides the body module； the vertical air inlet and the vertical air outlet within the same body module is in perpendicular relationship when they are viewed from the top view of the body modules； the multiple units of body modules are flexible to be stacked and fastened together, to form a multiple air purification units (multiple-unit-device) ；

in one orientation when multiple units of body module being stacked and fastened together to form a multiple-unit-device, the vertical air inlet of one body module is perpendicular to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules；

in another orientation, the vertical air inlet of one body module is different direction to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules；

in another orientation, the vertical air inlet of one body module is same direction to the vertical air outlet of the adjacent body module when they are viewed from the top view of the body modules.
The method for assembling an air purification device and system according to claim 12, wherein the fan or blower within each body modules to operate at different air flow rate.
The method for assembling an air purification device and system according to claim 12, wherein different type of air filters for removal of different type of pollutants are disposed into the different body modules in the air purification device and system.
The method for assembling an air purification device and system according to claim 12, wherein the direction of the air grill which is equipped at each the air inlet and or air outlet of the body modules.