CN216048090U

CN216048090U - Binary channels air supply mechanism and fresh air unit

Info

Publication number: CN216048090U
Application number: CN202122179518.4U
Authority: CN
Inventors: 李宏波; 韦韬; 韦晓南; 林莉霞; 李奇; 董蓉
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-03-15
Anticipated expiration: 2031-09-09

Abstract

The utility model provides a double-channel air supply mechanism which comprises a first channel and a second channel which are arranged in a separated mode, wherein a first fan is arranged in the first channel, and a first air valve is arranged on the air outlet side; a second fan and a degerming device are arranged in the second channel, and a second air valve is arranged on the air outlet side; the utility model also provides a fresh air handling unit provided with the dual-channel air supply mechanism, and the air supply section of the fresh air handling unit is divided into a first channel for normal ventilation and a second channel with a disinfection function, so that the fresh air handling unit can perform normal ventilation, refrigeration or heating and can perform air disinfection during an epidemic situation; and the first filter and the photocatalytic purifier in the second channel are not lost when disinfection is not needed, and electric energy is not wasted.

Description

Binary channels air supply mechanism and fresh air unit

Technical Field

The utility model relates to the technical field of fresh air handling units, in particular to a dual-channel air supply mechanism and a fresh air handling unit.

Background

In the epidemic situation period, in the areas with high personnel density and relatively closed indoor such as hotels and shopping malls, the air conditioning and ventilating system accelerates the air flow in each area and each floor, and the hidden danger of cross infection exists. In addition, in the hotel selected as the isolation point, the risk of spreading the virus to other rooms through the air-conditioning ventilation system is very high, but if the air-conditioning ventilation system is closed, the air quality of the rooms is difficult to meet the requirement.

At present, an air conditioning system of a hotel guest room is mainly composed of a fan coil and a fresh air unit, the concentrated fresh air unit is only provided with a primary-medium-efficiency filter section, the disinfection effect on germs such as new corona viruses cannot be achieved, and the safety of the system and the health of personnel cannot be guaranteed.

Therefore, there is a need for a fresh air handling unit that can switch between two modes of normal operation and sterilization operation, and that does not cause loss of sterilization apparatus material during normal operation.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a dual-channel air supply mechanism, which can switch the ventilation equipment equipped with the dual-channel air supply mechanism between the normal operation mode and the disinfection operation mode, and does not cause loss to the sterilization equipment during normal operation; the utility model also provides a fresh air handling unit provided with the double-channel air supply mechanism, which can not only carry out normal ventilation, refrigeration or heating, but also carry out air disinfection during epidemic situations.

The utility model provides a double-channel air supply mechanism, which comprises a first channel and a second channel which are arranged in a separated way,

a first fan and a first air valve for switching the on-off state of the first channel are arranged in the first channel;

and a second fan, a sterilizing device and a second air valve for switching the on-off state of the second channel are arranged in the second channel.

Preferably, the sterilization device is a photocatalytic purifier.

Preferably, a first filter is further disposed in the second channel.

Preferably, the first filter has a filter particle size of less than 0.3 μm.

The utility model also provides a fresh air handling unit, and an air supply section of the fresh air handling unit comprises any one of the two-channel air supply mechanisms.

Preferably, the fresh air handling unit further comprises a filter section, and a second filter is arranged in the filter section.

Preferably, the fresh air handling unit further comprises a surface cooling section, and a cooling coil is arranged in the surface cooling section.

Preferably, the fresh air handling unit further comprises a heating section, and a heating coil is arranged in the heating section.

Preferably, the fresh air handling unit further comprises a humidifying section, and a wet film humidifier is arranged in the humidifying section.

Preferably, the air supply section is located at the tail section of the air duct of the fresh air unit.

The utility model has the beneficial effects that: the air supply section of the fresh air unit is divided into a first channel for normal ventilation and a second channel with a disinfection function, so that the fresh air unit can perform normal ventilation, refrigeration or heating and can perform air disinfection during an epidemic situation; and the first filter and the photocatalytic purifier in the second channel are not lost when disinfection is not needed, and electric energy is not wasted.

Drawings

The utility model is described in detail below with reference to examples and figures, in which:

fig. 1 is a schematic structural view of a dual-channel blowing mechanism.

Fig. 2 is a schematic structural view of a fresh air handling unit.

Description of reference numerals:

100-air supply section, 110-first channel, 111-first fan, 112-first air valve, 120-second channel, 121-second fan, 122-second air valve, 123-photocatalytic purifier, 124-first filter, 200-filtering section, 201-second filter, 300-surface cooling section, 301-cooling coil, 400-heating section, 401-heating coil, 500-humidifying section and 501-wet film humidifier.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Thus, a feature indicated in this specification will serve to explain one of the features of one embodiment of the utility model, and does not imply that every embodiment of the utility model must have the stated feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

The principles of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1, the present invention provides a dual-channel blowing mechanism that can be applied to a ventilation system or an air conditioning system;

the air duct of the double-channel air supply mechanism is divided into a first channel 110 and a second channel 120;

a first fan 111 is arranged in the first channel 110, and a first air valve 112 is arranged on the air outlet side of the first channel 110;

a second fan 121 and a degerming device are arranged in the second channel 120, and a second air valve 122 is arranged on the air outlet side of the second channel 120.

When there is no disinfection requirement, the first passage 110 is in an operating state, the second passage 120 is in a shutdown state, the first air valve 112 is opened, and the air flow moves to the side of the first air valve 112 under the driving of the first fan 111.

When a disinfection request is received, the first passage 110 is in a closed state, the second passage 120 is in a working state, the second air valve 122 is opened at the moment, the air flow moves to one side of the second air valve 122 under the driving of the second fan 121, and meanwhile, the sterilization device disinfects the passing air.

In this embodiment, the sterilization device is a photocatalytic purifier 123;

the photocatalytic purifier has the following advantages:

high-efficiency sterilization can thoroughly kill bacteria and viruses (such as legionella, influenza virus, MRSA malignant bacteria and coliform bacteria) in the air, and the killing rate reaches over 96 percent;

harmful chemical pollutants are decomposed, harmful gases such as TVOC, formaldehyde, Be benzene and the like in the air are effectively removed, and the decomposition rate reaches more than 98%;

the purification is safe, and the decomposed products are carbon dioxide and water which are harmless to human bodies, so that the secondary pollution is avoided.

In this embodiment, the second channel 120 is further provided with a first filter 124, and the filtering particle size of the first filter 124 is smaller than 0.3 μm;

the virus is mainly spread by droplets and aerosol, the diameter of the droplets is more than 5 microns, and the diameter of the aerosol is 0.5-12 microns, so that the droplets and the aerosol in the air can be intercepted and filtered;

in addition, the first filter 124 and the photocatalytic purifier 123 are installed in the same cavity and are close to each other, so that the photocatalytic purifier 123 can be used for disinfecting the first filter 124 and placing bacteria and viruses to propagate in the first filter 124.

As shown in fig. 2, the present invention further provides a fresh air handling unit, in which an air supply section 100 of the fresh air handling unit includes the dual-channel air supply mechanism described in any of the above embodiments.

In this embodiment, the fresh air handling unit is sequentially divided into a filtering section 200, a surface cooling section 300, a heating section 400, a humidifying section 500 and an air supply section 100 along the airflow movement direction;

the second filter 201 is arranged in the filtering section 200, the cooling coil 301 is arranged in the surface cooling section 300, the heating coil 401 is arranged in the heating section 400, the wet film humidifier 501 is arranged in the humidifying section 500, and the air supply section 100 is divided into the first passage 110 and the second passage 120.

A first fan 111 is arranged in the first channel 110, and a first air valve 112 is arranged at an air outlet of the first channel 110;

a second fan 121, a photocatalytic purifier 123 and a first filter 124 are arranged in the second channel 120, and a second air valve 122 is arranged at an air outlet of the second channel 120.

Compared with the second filter 201, the second filter 201 of the first filter 124 is a primary filter mainly used for filtering dust particles in the air, and the first filter 124 is a secondary filter mainly used for filtering and intercepting microorganism carriers such as droplets and aerosol in the air.

The fresh air handling unit has two modes of normal operation and disinfection operation, and the fresh air handling unit normally performs the work of air filtering, refrigeration, heating, humidification and the like no matter which mode is adopted;

when no disinfection requirement exists, the first channel 110 is in a working state, the second channel 120 is in a shutdown state, the first air valve 112 is opened at the moment, and air flow enters the first channel 110 under the driving of the first fan 111 and is discharged from the first air valve 112;

when a disinfection requirement exists, the first channel 110 is in a closed state, the second channel 120 is in a working state, at this time, the second air valve 122 is opened, and air flow enters the second channel 120 under the driving of the second fan 121 and flows out of the second air valve 122;

the air flow passes through the second passage 120, is secondarily filtered by the first filter 124, and is sterilized by the photocatalytic cleaner 123.

Air filtration usually adopts the filter screen structure, and the mesh density is lower, the filter screen of plastics material can wash, but the filter screen of high density mesh generally can not wash, belongs to the consumable article. If the first filter 124 is also filtering during periods when there is no sterilization requirement, the frequency of replacement of the first filter 124 may increase, not only wasting material, but also increasing the labor cost of replacement maintenance. Similarly, the photocatalytic purifier 123 is turned on for a long time in a non-epidemic situation, which is not very significant, but the service life of the photocatalytic purifier is meaningless lost, and electric energy is wasted. Therefore, the embodiment adopts two channels to be used in the period with the disinfection requirement and the period without the disinfection requirement respectively, thereby not only meeting the disinfection requirement, but also reducing the use cost to the maximum extent.

The terms "first," "second," and "third" are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance, the term "plurality" referring to two or more unless explicitly limited otherwise. The terms "mounted," "connected," and "fixed" are used broadly and encompass any connection, either fixed or removable or integral, for example, and also mean either directly or indirectly connected through intervening media. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the referred device or unit must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the specification, the descriptions of the terms "one embodiment," "some embodiments," "a specific embodiment," etc., mean that a particular feature, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-channel air supply mechanism comprises a first channel and a second channel which are arranged separately, and is characterized in that,

2. The dual channel blower mechanism of claim 1 wherein the degerming device is a photocatalytic purifier.

3. The dual channel blower mechanism of claim 1, further comprising a first filter disposed in the second channel.

4. The dual channel blower mechanism of claim 3 wherein the first filter has a filter particle size of less than 0.3 μm.

5. A fresh air handling unit, characterized in that the air supply section of the fresh air handling unit comprises the dual-channel air supply mechanism of any one of claims 1 to 4.

6. The fresh air handling unit of claim 5 further comprising a filter section, wherein a second filter is disposed in the filter section.

7. The fresh air handling unit of claim 5 further comprising a surface cooling section having a cooling coil disposed therein.

8. The fresh air handling unit of claim 5 further comprising a heating section having a heating coil disposed therein.

9. The fresh air handling unit of claim 5 further comprising a humidification stage having a wet film humidifier disposed therein.

10. The fresh air handling unit of claim 5, wherein the air supply section is located at an end of an air duct of the fresh air handling unit.