CN215175600U

CN215175600U - Air purification system

Info

Publication number: CN215175600U
Application number: CN202121462055.6U
Authority: CN
Inventors: 闫桂宾
Original assignee: Jinmao Green Building Technology Co Ltd
Current assignee: Jinmao Green Building Technology Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-14
Anticipated expiration: 2031-06-29

Abstract

The utility model provides an air purification system, it includes: the adsorption machine shell is provided with a first air inlet communicated with an indoor air return opening of a building and a first exhaust opening communicated with the outdoor air, a first switch valve is arranged at the first exhaust opening, and a third switch valve is arranged at the first air inlet; an adsorption filter box and a heating device are arranged in the adsorption shell, and a heat regeneration adsorption material is arranged in the adsorption filter box; the fresh air machine shell is provided with a second air outlet communicated with the indoor air outlet of the building, a second air inlet communicated with the outdoor air and a third air inlet communicated with the indoor air return inlet of the building, a second switch valve is arranged on the second air inlet, a fresh air filtering device is arranged in the fresh air machine shell, and the fresh air machine shell is communicated with the adsorption machine shell through a connecting pipe; and a control device. The utility model provides a current air purification equipment energy consumption and the higher problem of cost.

Description

Air purification system

Technical Field

The utility model relates to an air purification field, in particular to air purification system.

Background

In recent years, as the airtightness of buildings is improved, the problem of indoor air pollution is becoming more serious. The indoor air pollution is mainly indoor carbon dioxide pollution and indoor CO in addition to decoration, building materials and coatings₂The main source is carbon dioxide emitted by the person himself. Every person discharges about 200-3200L of carbon dioxide at night every day, 10 hours after closing the door and window, the indoor carbon dioxide is 3-7 times outdoor, if the room is a multi-person room, the room is more serious, the indoor CO2 concentration is very low (less than 0.07 percent) under normal conditions, and the human body feels good. When people gather and fuel burns, and the like, indoor CO is generated₂When the concentration is increased to 0.15%, the human body feels a great discomfort. Thus, efficient control of indoor CO₂Concentration is an important issue in the field of air purification of buildings at present.

The current market generally adopts the physical mode of fresh air replacement for the removal mode of indoor CO 2. The fresh air replacement mode has the following technical problems: 1. the heating ventilation equipment and the pipeline occupy large area of a machine room, so that the investment of an owner in a non-human-living environment is large; 2. replacement of CO by fresh air₂Harmful gas causes large energy consumption of heating equipment; 3. the long-term purification of the fresh outdoor air leads to shortened service life of the filter and the equipment. To this end, a method is provided for reducing the indoor CO2 concentration without the need for fresh air replacementThe air purification equipment reduces the fresh air volume and further reduces the energy consumption and the cost of the air purification equipment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is the higher problem of current air purification equipment energy consumption and cost.

To the technical problem mentioned above, the utility model provides a following technical scheme:

an air purification system, comprising: the adsorption machine shell is provided with a first air inlet communicated with an indoor air return opening of a building and a first exhaust opening communicated with the outdoor air, a first switch valve is arranged at the first exhaust opening, and a third switch valve is arranged at the first air inlet; an adsorption filter box and a heating device are arranged in the adsorption shell, and a heat regeneration adsorption material is arranged in the adsorption filter box; the fresh air machine shell is provided with a second air outlet communicated with the indoor air outlet of the building, a second air inlet communicated with the outdoor air and a third air inlet communicated with the indoor air return inlet of the building, a second switch valve is arranged on the second air inlet, and a fresh air filtering device is arranged in the fresh air machine shell; the fresh air shell is communicated with the adsorption shell through a connecting pipe; the control device is used for controlling the first switch valve to be closed, the second switch valve and the third switch valve to be opened, one path of air in a building room enters the adsorption casing through the first air inlet, is filtered by the adsorption filter box, enters the fresh air casing through the connecting pipe, and enters the building room through the second air outlet; the other path of air in the building room enters the fresh air shell through the third air inlet, is filtered by the fresh air filtering device and then enters the building room through the second air outlet; outdoor fresh air enters the fresh air casing through the second air inlet, is filtered by the fresh air filtering device and then enters the interior of the building through the second air outlet; the control device is also used for controlling the first switch valve and the second switch valve to be opened, the third switch valve to be closed and controlling the heating device to be started, outdoor air is filtered by the fresh air filtering device, one path of the outdoor air enters the interior of a building through the second air outlet, and the other path of the outdoor air enters the interior of the adsorption casing along the connecting pipe; and the indoor air of the building enters the fresh air machine shell through the third air inlet, and the harmful gas released from the adsorption filter box is discharged to the outside along the first air outlet.

The utility model discloses an among the partial implementation, the absorption casing passes through first cavity and second cavity are separated into to the absorption filter cartridge, first cavity with the connecting pipe intercommunication, the second cavity sets up first exhaust opening and first air intake, first exhaust opening department sets up first exhaust fan.

The utility model discloses an among the some embodiments, first exhaust opening with first air intake is located on the both sides wall that the second chamber is adjacent.

In some embodiments of the present invention, the fresh air casing is divided into a third chamber and a fourth chamber by the fresh air filtering device, the third chamber is communicated with the connecting pipe, and the third chamber is provided with the second air inlet and a third air inlet; the fourth cavity is provided with the second air outlet, and the second air outlet is provided with a second exhaust fan.

In some embodiments of the present invention, a gas concentration sensor is disposed at the second air outlet, and when a detection value of the gas concentration sensor is smaller than a set threshold, the control device controls the first switch valve and the second switch valve to close; and when the detection value of the gas concentration sensor is greater than or equal to a set threshold value, the control device controls the first switch valve and the second switch valve to be opened.

The utility model discloses an among the partial implementation mode, adsorb filter cartridge include both sides open-ended framework and connect respectively in the first separation net and the second separation net of framework both sides opening part, heat regeneration adsorbing material is located first separation net with between the second separation net, first separation net is located first cavity side, the second separation net is located second cavity side.

The utility model discloses an among the partial implementation, be equipped with a plurality of regular spread's net pore in the framework, it is a plurality of the net pore forms and is used for holding heat regeneration adsorbing material's ventilation cavity.

The utility model discloses an among the partial implementation mode, adsorb the filter cartridge and include both sides open-ended framework, be equipped with a plurality of regular spread's net pore in the framework, be equipped with on the net pore wall heat regeneration adsorbing material's coating.

The utility model discloses an among the some embodiments, the cross section in net pore is the hexagon, a plurality of hexagons net pore forms cellular passageway.

The utility model discloses an among the partial implementation mode, new trend filter equipment is including the preliminary treatment coarse filter, coarse grain electrostatic precipitator, the electrostatic precipitator that set gradually, fine grain electrostatic precipitator, photocatalytic reactor.

The technical scheme of the utility model prior art relatively has following technological effect:

the utility model provides an air purification system can be switched under first operating condition and second operating condition under the control of controlling means, and during first operating condition, indoor gaseous of building gets into in the absorption casing through the first air intake all the way, gets into in the new trend casing through the connecting pipe after the filtration of absorption filter cartridge, and get into indoor through the second air intake, indoor gaseous another way of building gets into in the new trend casing through the third air intake, after the filtration of new trend filter equipment, get into indoor through the second air exit; outdoor fresh air enters the fresh air casing through the second air inlet, is filtered by the fresh air filtering device and then enters the interior of the building through the second air outlet; air purification circulation is formed, and indoor harmful gas is filtered and purified; in the second working state, outdoor air is filtered by the fresh air filtering device and then enters the interior of the building through the second air inlet, and indoor air of the building enters the adsorption shell through the first air inlet and is discharged into the fresh air shell from the third air outlet to formFresh air purification and circulation; after the adsorption filter box is heated, the adsorbed harmful gas can be gradually released, and after the other path of outdoor air enters the adsorption machine shell along the connecting pipe, the harmful gas released in the adsorption filter box is discharged to the outside along the first exhaust port. By using an adsorption filter cartridge with thermally regenerated filter material, CO is made₂The adsorption saturation is followed by heating regeneration, thus prolonging the service life of the adsorption filter cartridge and reducing the cost; meanwhile, when the adsorption shell is in a heat regeneration working state, fresh air purification circulation is achieved through the fresh air shell indoors, and indoor air quality is guaranteed. Compared with the existing mode that the fresh air intake is reduced by adopting a fresh air fan to purify, the whole purification process of the air purification system reduces the energy consumption of the system.

Drawings

The objects and advantages of the present invention will be understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a system diagram of an embodiment of an air purification system according to the present invention;

fig. 2 is a schematic structural diagram of an embodiment of an adsorption filter cartridge in an air purification system provided by the present invention;

fig. 3 is a sectional view taken along line a-a in fig. 2.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1 shows a specific embodiment of the air purification system provided by the present invention, which is used for air purification treatment of a relatively closed building to reduce harmful gases such as carbon dioxide in the indoor air of the building.

This air purification system includes: a fresh air casing 20 and an absorption casing 10 which are communicated through a connecting pipe 50, and a control device for controlling the working state of the air purification system. Wherein, the adsorption casing 10 is used for realizing the adsorption and purification of the indoor air of the building, and the fresh air casing 20 is used for realizing the fresh air purification of the indoor air of the building.

The adsorption machine shell 10 is provided with a first air inlet 11 communicated with an indoor air return opening of a building and a first exhaust opening 12 communicated with the outdoor air, a first switch valve 41 is arranged at the first exhaust opening 12, and a third switch valve 43 is arranged at the first air inlet 11; an adsorption filter box 30 and a heating device 60 are arranged in the adsorption casing 10, and a heat regeneration adsorption material 305 is arranged in the adsorption filter box 30; heat is provided in the adsorption filter cartridge 30The regenerated adsorbent material 305; the thermal regeneration adsorption material 305 comprises one or more of molecular sieve, activated carbon, carbon nanotube, synthetic zeolite, porous alumina and metal organic framework, wherein the thermal regeneration adsorption material 305 can adsorb CO₂And after being heated to the set temperature, the adsorbing material can release the harmful gas adsorbed on the adsorbing material, so that the adsorbing material is regenerated.

The fresh air machine shell 20 is provided with a second air outlet 22 communicated with the indoor air outlet of the building, a second air inlet 21 communicated with the outdoor air and a third air inlet 23 communicated with the indoor air return inlet of the building, the second air inlet 21 is provided with a second switch valve 42, the fresh air machine shell 20 is internally provided with a fresh air filtering device 80, and the fresh air filtering device 80 is used for purifying outdoor air.

The control device is used for controlling the air purification system to be switched between a first working state and a second working state, when the control device controls the first switch valve 41 to be closed and the second switch valve 42 and the third switch valve 43 to be opened, the air purification system is in the first working state, air in a building room enters the adsorption casing 10 through the first air inlet 11, enters the fresh air casing 20 through the connecting pipe 50 after being filtered by the adsorption filter box 30, enters the building room through the second air outlet 22, and the other path of air in the building room enters the fresh air casing 20 through the third air inlet 23, is filtered by the fresh air filtering device 80, and enters the building room through the second air outlet 22; outdoor fresh air enters the fresh air casing 20 through the second air inlet 21, is filtered by the fresh air filtering device 80 and then enters the interior of the building through the second air outlet 22 to form air purification circulation, so that the filtration and purification of indoor harmful gas are realized; when the control device controls the first switch valve 41 and the second switch valve 42 to be opened and the third switch valve 43 to be closed, and controls the heating device 60 to be started, the air purification system is in a second working state, and after outdoor air is filtered by the fresh air filtering device 80, one path of the outdoor air passes through the second rowThe air inlet 22 enters the indoor of the building, and the indoor air of the building enters the fresh air shell 20 through the third air inlet 23 to form a fresh air purification cycle; after the adsorption filter cartridge 30 is heated, the adsorbed harmful gas is gradually released, and after the outdoor air enters the adsorption casing 10 through the connection pipe 50, the harmful gas released from the adsorption filter cartridge 30 is discharged to the outside along the first exhaust port 12. By using an adsorption cartridge 30 with thermally regenerated filter material, CO is made₂The adsorption is saturated and then is heated and regenerated, so that the service life of the adsorption filter cartridge 30 is prolonged, and the cost is reduced; meanwhile, when the adsorption casing 10 is in a heat regeneration working state, fresh air purification circulation is achieved through the fresh air casing 20 indoors, and indoor air quality is guaranteed. The whole purification process of the air purification system reduces the intake of fresh air, thereby reducing the energy consumption of the heating ventilation air conditioning equipment for overcoming the fresh air.

The fresh air filtering device 80 has a non-unique structure; in a specific embodiment, the fresh air filtering device 80 includes a pretreatment coarse filter 81, a coarse particle electrostatic precipitator 82, an electrostatic condenser 83, a fine particle electrostatic precipitator 84, and a photocatalytic reactor 85, which are sequentially disposed along the flow direction of the fresh air. The pretreatment prefilter 81 is composed of a filter screen, a filter element and a metal frame, and the filter screen is arranged in the metal frame. The coarse electrostatic precipitator 82 and the fine electrostatic precipitator 84 are both double-zone electrostatic precipitators, which are divided into an ionization section and a dust collection section, wherein the ionization section is composed of a high-voltage ionization line and a negative plate, and the dust collection section is composed of a negative plate and a positive plate. The metal wire on the ionization section is applied with high direct current positive voltage, and the ionization section generates an uneven electric field to charge the particles in the air, and the charged particles are driven to the dust collecting plate under the action of coulomb force and reach the surface of the dust collecting plate to discharge the charges to be deposited on the dust collecting plate. The electrostatic condenser 83 is composed of two columnar high-voltage electrodes and two plate-like grounding electrodes, and high-voltage alternating current and high-voltage direct current are superimposed and applied to the two high-voltage electrodes. The photocatalytic reactor 85 is a tubular reactor, and comprises a tubular shell, activated carbon or glass fiber loaded with a photocatalyst, and an ultraviolet light source, wherein the ultraviolet lamp tube is arranged at the longitudinal axis of the shell, the two sections of the lamp tube are fixed by transverse porous plates arranged at the two ends of the shell, the activated carbon loaded with the photocatalyst is filled between the shell and the ultraviolet lamp tube, and the photocatalyst is nano TiO2 or nano-doped TiO 2. The photocatalytic reactor 85 catalytically degrades organic pollutants such as formaldehyde, benzene, toluene and the like adsorbed and concentrated by activated carbon by using the nano-sized TiO2 excited by the ultraviolet light source, and sterilizes and purifies harmful gases in the air by using ozone and active particles generated by the coarse electrostatic precipitator 82 and the fine electrostatic precipitator 84.

Specifically, the adsorption casing 10 is divided into a first chamber 10a and a second chamber 10b by the adsorption filter cartridge 30, the first chamber 10a is internally communicated with the fresh air casing 20 by the connecting pipe 50, the second chamber 10b is provided with the first exhaust port 12 and the first air inlet 11, and the first exhaust port 12 is provided with the first exhaust fan 91.

In order to make the air resistance of the air duct smooth when the air purification system performs the fresh air purification cycle, the first exhaust opening 12 and the first air inlet 11 are located on two adjacent side walls of the second chamber 10 b.

Pass through in the new trend casing 20 new trend filter equipment 80 separates into third chamber 20a and fourth chamber 20b, third chamber 20a with connecting pipe 50 intercommunication, third chamber 20a sets up second air intake 21 and third air intake 23, fourth chamber 20b sets up second air exit 22, second air exit 22 department sets up second exhaust fan 92. Because the connecting pipe 50 is communicated with the third chamber 20a, the air purification system can continuously enter the fresh air filtering device 80 for filtering after passing through the adsorption filter cartridge 30 in the first working state, and the air purification efficiency is high.

Specifically, a gas concentration sensor 70 is provided at the second air outlet 22, and the gas concentration sensor 70 is used for detecting the concentration of harmful gas, such as carbon dioxide, at the second air outlet 22 after passing through the adsorption filter cartridge 30. The condition of the gas entering the building room can be judged in advance. When the detection value of the gas concentration sensor 70 is smaller than a set threshold value, namely the concentration of the carbon dioxide discharged into the building room is lower, at the moment, the air purification system works in a first working state to carry out adsorption purification circulation; namely, the control device controls the first on-off valve 41 to be closed and the second on-off valve 42 and the third on-off valve 43 to be opened; when the detection value of the gas concentration sensor 70 is greater than or equal to the set threshold value, the harmful gas in the adsorption filter cartridge 30 is saturated, and at this time, the air purification system is made to perform a fresh air purification cycle and release and discharge of the harmful gas in the second operating state, that is, the control device controls the first on-off valve 41 and the second on-off valve 42 to be opened and the third on-off valve 43 to be closed.

The adsorption filter cartridge 30 has a non-exclusive structure, as shown in fig. 2 and 3, in one embodiment, the adsorption filter cartridge 30 includes a frame 301 having openings on two sides, and a first isolation net 302 and a second isolation net 303 connected to the openings on two sides of the frame 301, respectively, the thermal regeneration adsorption material 305 is located between the first isolation net 302 and the second isolation net 303, the first isolation net 302 is located on the first chamber 10a side, and the second isolation net 303 is located on the second chamber 10b side. More specifically, the frame 301 is formed into a square frame structure, and the first isolation mesh 302 and the second isolation mesh 303 are formed into a metal mesh plate structure.

In order to improve the adsorption effect of the thermal regeneration adsorbent 305 in the adsorption filter cartridge 30, a plurality of regularly arranged grid channels 304 are provided in the frame 301, and the plurality of grid channels 304 form a ventilation chamber for accommodating the thermal regeneration adsorbent 305. By arranging the regularly arranged grid pore channels 304, the thermal regeneration adsorption material 305 is uniformly arranged in the adsorption filter box 30, the adsorption amount passing through different positions of the adsorption filter box 30 is uniform, and the problem that the adsorption efficiency of the adsorption filter box 30 is reduced due to the fact that the thermal regeneration adsorption material 305 is not uniformly distributed is avoided.

More specifically, the cross section of the mesh duct 304 is hexagonal, a plurality of hexagonal mesh ducts 304 form a honeycomb-shaped channel, and the honeycomb-shaped channel ensures the effective volume in the adsorption filter cartridge 30 on the premise of ensuring the strength of the mesh duct 304, thereby improving the adsorption efficiency of the adsorption filter cartridge 30.

In another embodiment, the adsorption filter cartridge 30 includes a frame 301 with openings on two sides, a plurality of regularly arranged grid channels 304 are disposed in the frame 301, and a coating layer of the thermal regeneration adsorption material is disposed on the walls of the grid channels 304. More specifically, the frame 301 and the mesh duct 304 are integrally formed by a metal material or a plastic, and the coating of the thermal regeneration adsorption material is prepared on the side wall of the mesh duct 304 by spraying or the like. The structure of the adsorption filter cartridge 30 can make the air resistance smaller when the air flows, and accelerate the air circulation.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. An air purification system, comprising:

the adsorption machine shell is provided with a first air inlet communicated with an indoor air return opening of a building and a first exhaust opening communicated with the outdoor air, a first switch valve is arranged at the first exhaust opening, and a third switch valve is arranged at the first air inlet; an adsorption filter box and a heating device are arranged in the adsorption shell, and a heat regeneration adsorption material is arranged in the adsorption filter box;

the fresh air machine shell is provided with a second air outlet communicated with the indoor air outlet of the building, a second air inlet communicated with the outdoor air and a third air inlet communicated with the indoor air return inlet of the building, a second switch valve is arranged on the second air inlet, and a fresh air filtering device is arranged in the fresh air machine shell; the fresh air shell is communicated with the adsorption shell through a connecting pipe;

the control device is used for controlling the first switch valve to be closed, the second switch valve and the third switch valve to be opened, one path of air in a building room enters the adsorption casing through the first air inlet, is filtered by the adsorption filter box, enters the fresh air casing through the connecting pipe, and enters the building room through the second air outlet; the other path of air in the building room enters the fresh air shell through the third air inlet, is filtered by the fresh air filtering device and then enters the building room through the second air outlet; outdoor fresh air enters the fresh air casing through the second air inlet, is filtered by the fresh air filtering device and then enters the interior of the building through the second air outlet; the control device is also used for controlling the first switch valve and the second switch valve to be opened, the third switch valve to be closed and controlling the heating device to be started, outdoor air is filtered by the fresh air filtering device, one path of the outdoor air enters the interior of a building through the second air outlet, and the other path of the outdoor air enters the interior of the adsorption casing along the connecting pipe; and the indoor air of the building enters the fresh air machine shell through the third air inlet, and the harmful gas released from the adsorption filter box is discharged to the outside along the first air outlet.

2. The air purification system of claim 1, wherein the adsorption casing is separated into a first chamber and a second chamber by the adsorption filter cartridge, the first chamber is communicated with the connecting pipe, the second chamber is provided with the first exhaust opening and the first air inlet, and the first exhaust opening is provided with the first exhaust fan.

3. The air purification system of claim 2, wherein the first exhaust opening and the first intake opening are located on two sidewalls adjacent to the second chamber.

4. The air purification system as claimed in claim 1, wherein the fresh air housing is divided into a third chamber and a fourth chamber by the fresh air filtering device, the third chamber is communicated with the connecting pipe, and the third chamber is provided with the second air inlet and a third air inlet; the fourth cavity is provided with the second air outlet, and the second air outlet is provided with a second exhaust fan.

5. The air purification system according to claim 1, wherein a gas concentration sensor is provided at the second air outlet, and when a detection value of the gas concentration sensor is smaller than a set threshold value, the control device controls the first and second on-off valves to be closed; and when the detection value of the gas concentration sensor is greater than or equal to a set threshold value, the control device controls the first switch valve and the second switch valve to be opened.

6. The air purification system according to claim 2, wherein the adsorption filter cartridge comprises a frame body with openings on two sides, and a first isolation net and a second isolation net respectively connected to the openings on two sides of the frame body, the heat regeneration adsorption material is located between the first isolation net and the second isolation net, the first isolation net is located on the first chamber side, and the second isolation net is located on the second chamber side.

7. The air purification system of claim 6, wherein a plurality of regularly arranged grid channels are formed in the frame body, and the plurality of grid channels form a ventilation chamber for accommodating the thermal regeneration adsorption material.

8. The air purification system of claim 2, wherein the adsorption filter cartridge comprises a frame body with openings at two sides, a plurality of regularly arranged grid pore channels are arranged in the frame body, and a coating of the thermal regeneration adsorption material is arranged on the wall of each grid pore channel.

9. The air purification system according to claim 7 or 8, wherein the cross-section of the cell channels is hexagonal, and a plurality of hexagonal cell channels form a honeycomb channel.

10. The air purification system according to claim 1, wherein the fresh air filtering device comprises a pretreatment coarse filter, a coarse particle electrostatic precipitator, an electrostatic condenser, a fine particle electrostatic precipitator and a photocatalytic reactor which are arranged in sequence.