CN217604301U

CN217604301U - Fresh air handling unit

Info

Publication number: CN217604301U
Application number: CN202222252406.1U
Authority: CN
Inventors: 董学勇; 王宝汉; 余瑞江
Original assignee: Guangzhou JP EPE Co Ltd
Current assignee: Guangzhou JP EPE Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-10-18
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to the technical field of ventilation equipment, in particular to a fresh air handling unit, which comprises a fresh air pipeline, wherein outdoor air is introduced into the fresh air pipeline by a first inlet and is output to the indoor air by a first outlet; the indoor air enters the return air pipeline through the second inlet and is discharged to the outside through the second outlet; the total heat exchanger is used for carrying out heat exchange on the air of the fresh air pipeline and the air of the return air pipeline; the first filtering module is used for filtering air entering the fresh air pipeline; the sterilization module comprises a mobile unit arranged in the fresh air pipeline and a sterilization unit movably connected with the mobile unit; and the dehumidification module comprises a refrigeration system and a liquid collecting pipe which are positioned in the fresh air pipeline, and the liquid collecting pipe is connected to an evaporator of the refrigeration system. This application fresh air handling unit also can reduce and introduce bacterium and virus when can keeping indoor constant temperature ventilation to reduce the risk of harm health.

Description

Fresh air handling unit

Technical Field

The application relates to the technical field of ventilation equipment, in particular to a fresh air handling unit.

Background

In hospitals, infection wards, shelter hospitals, elderly hospitals, infant care rooms, nucleic acid testing and other special places or in seasons with high incidence of diseases such as influenza, indoor ventilation needs to be maintained in order to improve indoor air quality. Meanwhile, in order to maintain a constant temperature environment in a room, air conditioning equipment is generally required to be installed.

However, air conditioning equipment generally lacks a fresh air system, so that indoor and outdoor air cannot circulate, and only indoor air is recycled, so that bacteria and viruses are easily bred, and the human health is damaged.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the utility model provides a fresh air handling unit, it can solve among the prior art air of indoor space and breed the problem that bacterial virus harms health easily.

In order to achieve the purpose, the following technical scheme is adopted in the application:

provided is a fresh air handling unit including:

a fresh air duct having a first inlet and a first outlet, the first inlet introducing outdoor air into the fresh air duct and outputting air from the first outlet to the indoor;

the air return pipeline is provided with a second inlet and a second outlet, and the second inlet leads indoor air to enter the air return pipeline and outputs the air from the second outlet to the outside;

the total heat exchanger is arranged between the fresh air pipeline and the return air pipeline and used for exchanging heat between the air in the fresh air pipeline and the air in the return air pipeline;

the first filtering module is arranged at the first inlet and is used for filtering air entering the fresh air pipeline;

the sterilization module comprises a moving unit arranged in the fresh air pipeline and a sterilization unit movably connected with the moving unit, the moving unit is used for driving the sterilization unit to move along the extension direction of the first filtering module, and the sterilization unit is used for inactivating bacteria and viruses on the first filtering module.

As a preferred scheme of the fresh air handling unit, a dehumidification module is arranged in the fresh air pipeline, the dehumidification module comprises a refrigeration system and a liquid collecting pipe which are arranged in the fresh air pipeline, the liquid collecting pipe is connected to an evaporator of the refrigeration system, the evaporator is used for condensing water vapor in the air in the fresh air pipeline to form condensed water, and the liquid collecting pipe is used for collecting the condensed water.

As a preferred scheme of the fresh air handling unit, a first fan is arranged in the fresh air pipeline, and the first fan is used for sucking air in the fresh air pipeline and outputting the air to the first outlet;

and/or a second fan is arranged in the return air pipeline and used for sucking air in the return air pipeline and outputting the air to the second outlet.

As a preferred scheme of the fresh air handling unit, the refrigeration system further includes a first condenser and a second condenser, the evaporator and the first condenser are disposed between the total heat exchanger and the first fan, and the first condenser is disposed on a side of the evaporator away from the total heat exchanger; the second condenser is disposed between the total heat exchanger and the second fan.

As a preferred scheme of new fan unit, the dehumidification module still including connect in the water pump and the atomizer of collector tube, the water pump is used for driving about the comdenstion water in the collector tube removes extremely the atomizer, the atomizer orientation the second condenser sets up, be used for to the second condenser sprays water smoke.

As a preferred scheme of the fresh air handling unit, the moving unit includes a driving mechanism, a transmission screw rod and a screw rod nut, the screw rod nut is sleeved on the transmission screw rod, the transmission screw rod is disposed at an output end of the driving mechanism, the driving mechanism is fixedly disposed between the first inlet and the first filter module, the driving mechanism is configured to drive the transmission screw rod to rotate forward or backward, so that the screw rod nut reciprocates along a length direction of the transmission screw rod, and a length direction of the transmission screw rod corresponds to an extension direction of the first filter module;

the sterilization unit is fixedly arranged on the screw rod nut.

As a preferred scheme of the fresh air handling unit, the sterilization module further comprises:

the shell is arranged between the first inlet and the first filtering module, and the driving mechanism is fixedly arranged in the shell;

the sliding rail is fixedly arranged in the shell and is parallel to the transmission screw rod;

the slider with the sterilization unit fixed connection, the through-hole has been seted up to the slider, through the through-hole cover is located on the slide rail to make the sterilization unit follow the slide rail with the length direction of transmission silk pole removes.

As a preferred scheme of fresh air handling unit, still include:

the second filtering module is arranged on one side, deviating from the first filtering module, of the sterilization module and is used for filtering air passing through the first inlet.

As a preferred scheme of the fresh air handling unit, the method further comprises the following steps:

the fresh air pipeline is internally provided with a clamping structure, and the shell is detachably connected with the clamping structure.

As a preferred scheme of fresh air handling unit, be provided with elastic conducting strip in the joint structure, the casing corresponds elastic conducting strip's position is provided with the current conducting plate, the current conducting plate with the unit electricity that disinfects is connected, the casing with when joint structure joint elastic conducting strip with the current conducting plate electricity is connected.

The beneficial effect of this application does:

outdoor air is introduced into the indoor space by providing a fresh air duct having a first inlet and a first outlet, and indoor air is introduced into the outdoor air by providing a return air duct having a second inlet and a second outlet, thereby facilitating air exchange between the indoor space and the outdoor environment. Set up full heat exchanger between fresh air pipeline and return air pipeline, can carry out the heat exchange with the air of fresh air pipeline and return air pipeline to reduce the temperature variation of indoor space, avoid the temperature of the outdoor air of introducing to hang down or too high and destroy the temperature stationarity of indoor environment, also can reduce indoor air conditioner constant temperature system's energy extravagant.

In addition, set up first filter module at first entry, can filter the air that gets into the new trend pipeline, reduce dust and aerosol on the one hand and pollute indoor environment, also avoid getting into indoor environment with the bacterium and the virus that carry in dust and the aerosol. Simultaneously, set up the module of disinfecting in the fresh air pipeline, because the module of disinfecting drives the extension direction removal of the unit of disinfecting along first filtration module including setting up the mobile unit and swing joint in the mobile unit in the fresh air pipeline through the mobile unit to bacterium and the virus to on the first filtration module carry out the inactivation processing, can further reduce bacterial content and the viral content in the air that gets into indoor environment. Under the effect of driving about of mobile unit, also can keep the unit of disinfecting to carry out homogenization inactivation treatment to every filtration area of first filtration module, improve the disinfection effect of disinfecting.

Consequently, the fresh air handling unit of this application also can reduce the bacterium and the virus of introducing indoor environment when can keeping indoor environment constant temperature ventilation to reduce the risk of haring the health.

Drawings

The present application will be described in further detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of a fresh air handling unit according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a fresh air handling unit according to another embodiment of the present application.

Fig. 3 is a schematic structural diagram of a refrigeration system according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a sterilization module according to an embodiment of the present application.

Fig. 5 is a schematic partial structural view of a sterilization module and a fresh air duct according to an embodiment of the present application.

Fig. 6 is a schematic partial structural diagram of a sterilization module according to an embodiment of the present application.

In the figure:

1. a fresh air duct; 11. a first inlet; 12. a first outlet; 13. a first fan; 14. a clamping structure; 15. an elastic conductive sheet;

2. a return air duct; 21. a second inlet; 22. a second outlet; 23. a second fan;

3. a total heat exchanger; 4. a first filtration module;

5. a sterilization module; 51. a mobile unit; 511. a drive mechanism; 512. a transmission screw rod; 513. a feed screw nut; 52. a sterilization unit; 53. a housing; 54. a slide rail; 55. a slider; 56. a conductive plate;

61. a refrigeration system; 611. a compressor; 612. an evaporator; 613. a throttle valve; 614. a first condenser; 615. a second condenser; 62. a liquid collecting pipe; 63. a water pump; 64. an atomizer; 7. and a second filtration module.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the embodiments of the present application clearer, the following detailed description of the technical solutions of the embodiments of the present application makes clear that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the description of the present application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of 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.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the present embodiment provides a fresh air handling unit, including:

a fresh air duct 1 having a first inlet 11 and a first outlet 12, the first inlet 11 introducing outdoor air into the fresh air duct 1 and outputting the air to the indoor through the first outlet 12;

a return duct 2 having a second inlet 21 and a second outlet 22, the indoor air entering the return duct 2 through the second inlet 21 and being discharged to the outside through the second outlet 22;

the total heat exchanger 3 is used for exchanging heat between the air in the fresh air pipeline 1 and the air in the return air pipeline 2;

the first filtering module 4 is arranged at the first inlet 11 and is used for filtering the air entering the fresh air pipeline 1;

the sterilization module 5 comprises a moving unit 51 arranged in the fresh air pipeline 1 and a sterilization unit 52 movably connected with the moving unit 51, the moving unit 51 is used for driving the sterilization unit 52 to move along the extension direction of the first filter module 4, and the sterilization unit 52 is used for inactivating bacteria and viruses on the first filter module 4.

The present application provides a fresh air duct 1 having a first inlet 11 and a first outlet 12 to introduce outdoor air into an indoor space, and a return air duct 2 having a second inlet 21 and a second outlet 22 to introduce indoor air to the outdoor, thereby facilitating air exchange between the indoor space and an outdoor environment. Set up full heat exchanger 3 between fresh air pipeline 1 and return air pipeline 2, can carry out the heat exchange with fresh air pipeline 1 and return air pipeline 2's air to reduce the temperature variation of indoor space, avoid the temperature of the outdoor air of introducing to hang down or too high and destroy the temperature stationarity of indoor environment.

In addition, set up first filter module 4 at first entry 11, can filter the air that gets into new trend pipeline 1, reduce dust and aerosol on the one hand and pollute indoor environment, also avoid getting into indoor environment with bacterium and the virus that carry in dust and the aerosol. Meanwhile, the sterilization module 5 is arranged in the fresh air pipeline 1, and the sterilization module 5 comprises a moving unit 51 arranged in the fresh air pipeline 1 and a sterilization unit 52 movably connected to the moving unit 51, so that the sterilization unit 52 can be driven to move along the extension direction of the first filter module 4 through the moving unit 51, bacteria and viruses on the first filter module 4 are inactivated, and the content of bacteria and viruses in air entering an indoor environment can be further reduced. Under the driving action of the moving unit 51, the sterilizing unit 52 can be kept to uniformly inactivate each filtering area of the first filtering module 4, so that the sterilizing and disinfecting effect is improved.

Consequently, the fresh air handling unit of this application also can reduce the bacterium and the virus of introducing indoor environment when can keeping indoor environment constant temperature ventilation to reduce the risk of harm health.

In order to regulate the humidity of the air entering the fresh air duct 1, preferably, referring to fig. 2, a dehumidification module is arranged in the fresh air duct 1, the dehumidification module comprises a refrigeration system 61 and a liquid collecting pipe 62 which are arranged in the fresh air duct 1, the liquid collecting pipe 62 is connected to an evaporator 612 of the refrigeration system 61, the refrigeration system 61 generally comprises a compressor 611, an evaporator 612, a throttle valve 613 and a condenser, the evaporator 612 can absorb heat, and the condenser emits heat, so that the heat of the water vapor in the fresh air duct 1 can be transferred to form condensed water. At this time, the condensed water is collected by the liquid collecting tube 62, so that the humidity of the air introduced into the fresh air duct 1 can be reduced.

In order to increase the air flow rate in the fresh air duct 1, referring to fig. 1 or fig. 2, a first fan 13 is provided in the fresh air duct 1, and the amount of air introduced into the indoor space can be increased by sucking the air in the fresh air duct 1 to the first outlet 12 by the first fan 13. Alternatively, the second fan 23 is disposed in the return air duct 2, and the second fan 23 can also suck the air in the return air duct 2 and output the air to the second outlet 22, so as to accelerate the exhaust of the exhaust air from the indoor space. Or, set up first fan 13 and second fan 23 respectively in fresh air pipeline 1 and return air pipeline 2, can introduce the new trend simultaneously and discharge waste gas, further improve the air exchange efficiency of indoor environment.

More preferably, referring to fig. 3, the refrigeration system 61 of the present application includes a compressor 611, an evaporator 612, a throttle valve 613, a first condenser 614, and a second condenser 615, wherein the evaporator 612 and the first condenser 614 are disposed between the total heat exchanger 3 and the first fan 13, and the first condenser 614 is disposed on a side of the evaporator 612 away from the total heat exchanger 3, so that the temperature of the air near the evaporator 612 in the fresh air duct 1 can be lowered to a dew point (which means a temperature at which the relative humidity of the water vapor contained in the air reaches a saturated humidity and starts to condense into liquid water at a certain pressure, and at this time, the amount of the water vapor contained in the air is a maximum amount of water vapor, i.e., a saturated amount of water vapor), thereby forming condensed water, and then the fresh air is heated by the first condenser 614 to lower the relative humidity, thereby preventing the first fan 13 from being damaged due to the presence of the condensed water, and achieving an effect of protecting the first fan 13. Meanwhile, the second condenser 615 of the refrigeration system 61 is arranged between the total heat exchanger 3 and the second fan 23, so that part of heat of the refrigeration system 61 can be taken away when indoor waste gas is led out through return air management, the heat of air entering through the fresh air pipeline 1 can be reduced, and the effect of refrigerating and air conditioning is achieved.

Still preferably, referring to fig. 2, the dehumidification module further includes a water pump 63 and an atomizer 64 connected to the liquid collecting pipe 62, the water pump 63 is capable of driving the condensed water in the liquid collecting pipe 62 to move to the atomizer 64, and the atomizer 64 is disposed toward the second condenser 615 for spraying water mist to the second condenser 615, so that heat of the second condenser 615 can be absorbed by the water mist and then sucked by the second fan 23 to take away the heat, thereby improving refrigerant circulation efficiency of the refrigeration system 61 and further improving refrigeration and dehumidification effects.

The atomizer 64 of the present embodiment includes a high pressure atomizer and an ultrasonic atomizer, and the specific type of the atomizer 64 can be selected according to the actual atomization amount required.

In a specific implementation, referring to fig. 6, the moving unit 51 includes a driving mechanism 511, a transmission screw 512 and a screw nut 513, wherein the screw nut 513 is sleeved on the transmission screw 512, and the transmission screw 512 is disposed at an output end of the driving mechanism 511, and the transmission screw 512 can be driven to rotate by the driving mechanism 511. The driving mechanism 511 is fixedly arranged between the first inlet 11 and the first filter module 4, and the driving mechanism 511 can drive the transmission screw 512 to rotate forwards or backwards, so that the screw nut 513 is driven to reciprocate along the length direction of the transmission screw 512. Because the length direction of the transmission lead screw 512 corresponds to the extension direction of the first filter module 4, the extension direction of the filter screen of the first filter module 4 can be understood as the plane extension direction, and the sterilization unit 52 is fixedly arranged on the lead screw nut 513, so that the sterilization unit 52 can be driven by the lead screw nut 513 to reciprocate along the extension direction of the first filter module 4, and the inactivation treatment of each filter area of the first filter module 4 is realized.

Further, referring to fig. 4, the sterilization module 5 further includes a housing 53, a slide rail 54, and a slider 55, wherein:

the housing 53 is disposed between the first inlet 11 and the first filter module 4, the driving mechanism 511 is fixedly disposed in the housing 53, the slide rail 54 is also fixedly disposed in the housing 53 and is parallel to the driving screw 512, the driving mechanism 511 and the slide rail 54 can be simultaneously and fixedly disposed through the housing 53, and the parallel relationship between the slide rail 54 and the driving screw 512 can be maintained. And then, the sliding block 55 is fixedly connected with the sterilization unit 52, the sliding block 55 is provided with a through hole, the sliding block 55 is sleeved on the sliding rail 54 through the through hole, and when the driving mechanism 511 drives the transmission screw rod 512 to rotate, the sterilization unit 52 on the screw rod nut 513 is limited by the sliding block 55 movably connected with the sliding rail 54 and moves along the length direction of the sliding rail 54 and the transmission screw rod 512. In the embodiment, the slider 55 is slidably connected with the slide rail 54, so that the sterilization unit 52 can be kept moving along the length direction of the transmission screw 512, and the sterilization unit 52 and the housing 53 can be kept not rotating, thereby keeping the reciprocating motion of the sterilization unit 52 smooth.

For a specific implementation manner of the driving mechanism 511, optionally, the driving mechanism 511 includes a driving motor and a coupling, the driving motor is fixedly disposed on the housing 53, and one end of the coupling is connected to an output end of the driving motor, so that the coupling can transmit an output torque of the driving motor. The other end of the coupler is connected to the transmission screw 512, so that the output torque of the driving motor is transmitted to the transmission screw 512, and the transmission screw 512 is driven to rotate forwards or backwards.

In this embodiment, the coupler can also buffer the output vibration of the driving motor to improve the rotational stability of the driving screw 512.

In particular, with reference to fig. 2, the side of the sterilisation module 5 facing away from the first filter module 4 is provided with a second filter module 7, the second filter module 7 being intended to filter the air passing through the first inlet 11. Can filter the gas that gets into fresh air pipeline 1 through second filter module 7, combine first filter module 4's filter effect, can do further filtration to the gas in the fresh air pipeline 1, can also further reduce entering fresh air pipeline 1 such as dust in the gas and aerosol. More preferably, the second filter module 7 may be set to have a smaller filtering density than the first filter module 4, and the second filter module 7 may be used to primarily filter large particulate solids while protecting the first filter module 4 from the filtering effect of small particulate solids and aerosols.

In another embodiment, referring to fig. 1, a clamping structure 14 is disposed in the fresh air duct 1, such that the housing 53 is detachably connected to the clamping structure 14, and the sterilization module 5 can be arbitrarily installed or removed in the fresh air duct 1. It is convenient to change different sterilization modules 5 for different use requirements.

Preferably, referring to fig. 4 and 5, an elastic conductive plate 15 is disposed in the clamping structure 14, a conductive plate 56 is disposed at a position of the housing 53 corresponding to the elastic conductive plate 15, the conductive plate 56 is electrically connected to the sterilization unit 52, and the elastic conductive plate 15 is electrically connected to the conductive plate 56 when the housing 53 is clamped to the clamping structure 14. Through being connected to the power with elastic conducting strip 15, can realize the circular telegram when the module 5 that disinfects of this embodiment and the 14 joints of joint structure, and can directly cut off the power supply when breaking away from joint structure 14 with module 5 that disinfects, reduced and set up the wire rod and realize electrically conductive connection, also reduced the restriction that the wire rod removed module 5 that disinfects, the more change of the module 5 that disinfects of being convenient for.

In a specific implementation, the sterilization unit 52 can be an ultraviolet lamp, such as a UVC-LED module and a UV excimer lamp, and the ultraviolet light mainly acts on DNA of the microorganism to destroy DNA structure, so that the DNA structure loses the functions of propagation and self-replication, thereby achieving the purpose of sterilization. When the sterilization unit 52 is a UVC-LED module, the sterilization unit 52 with a specific size can be formed by performing modular design through serial and parallel combination of a plurality of UVC-LED lamp beads, so as to match the first filter modules 4 with different sizes, thereby improving the sterilization effect of the sterilization unit 52. The UV excimer discharge lamp, also called ultraviolet excimer lamp, uses high voltage and high frequency outside the ultraviolet lamp tube to bombard rare gas in the lamp tube to emit single 222nm ultraviolet ray, and can realize the effect of sterilization and disinfection.

In addition, the sterilization unit 52 may also be a plasma generator, and positive ions and negative ions generated by the plasma generator simultaneously generate huge energy release at the moment of neutralizing positive and negative charges in the air, so as to cause the change of the surrounding bacteria structure or the energy conversion, thereby causing the bacteria to die and realizing the sterilization effect. Because the quantity of the negative ions is larger than that of the positive ions, the redundant negative ions still float in the air, thereby achieving the health-care effects of eliminating smoke, removing dust, eliminating peculiar smell and improving the quality of the air so as to promote the health of human bodies.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principles of the present application have been described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the present application and is not to be construed in any way as limiting the scope of the application. Based on the explanations herein, a person skilled in the art will be able to conceive of other embodiments of the present application without inventive effort, which shall fall within the scope of protection of the present application.

Claims

1. A fresh air handling unit, comprising:

a fresh air duct (1) having a first inlet (11) and a first outlet (12), the first inlet (11) introducing outdoor air into the fresh air duct (1) and outputting air to the indoor through the first outlet (12);

a return duct (2) having a second inlet (21) and a second outlet (22), the indoor air entering the return duct (2) through the second inlet (21) and being discharged to the outside through the second outlet (22);

the total heat exchanger (3) is used for connecting the fresh air pipeline (1) and the return air pipeline (2) in a heat exchange manner through the total heat exchanger (3), and the total heat exchanger (3) is used for exchanging heat between the air in the fresh air pipeline (1) and the air in the return air pipeline (2);

a first filtering module (4) arranged at the first inlet (11) for filtering air entering the fresh air duct (1);

the sterilization module (5) comprises a moving unit (51) arranged in the fresh air pipeline (1) and a sterilization unit (52) movably connected with the moving unit (51), the moving unit (51) is used for driving the sterilization unit (52) to move along the extension direction of the first filtering module (4), and the sterilization unit (52) is used for inactivating bacteria and viruses on the first filtering module (4);

the dehumidification module comprises a refrigeration system (61) and a liquid collecting pipe (62) which are positioned in the fresh air pipeline (1), wherein the liquid collecting pipe (62) is connected to an evaporator (612) of the refrigeration system (61), the evaporator (612) is used for condensing water vapor of air in the fresh air pipeline (1) to form condensed water, and the liquid collecting pipe (62) is used for collecting the condensed water.

2. The fresh air handling unit according to claim 1, wherein a first fan (13) is disposed in the fresh air duct (1), and the first fan (13) is configured to draw air in the fresh air duct (1) and output the air to the first outlet (12);

and/or a second fan (23) is arranged in the return air pipeline (2), and the second fan (23) is used for sucking the air in the return air pipeline (2) and outputting the air to the second outlet (22).

3. The fresh air handling unit according to claim 2, wherein the refrigeration system (61) further comprises a first condenser (614) and a second condenser (615), the evaporator (612) and the first condenser (614) being arranged between the enthalpy exchanger (3) and the first fan (13), the first condenser (614) being arranged on a side of the evaporator (612) remote from the enthalpy exchanger (3); the second condenser (615) is disposed between the total heat exchanger (3) and the second fan (23).

4. The fresh air handling unit according to claim 3, wherein the dehumidification module further comprises a water pump (63) connected to the liquid collecting tube (62) and an atomizer (64), the water pump (63) being configured to drive the condensed water in the liquid collecting tube (62) to move to the atomizer (64), the atomizer (64) being disposed toward the second condenser (615) for spraying the second condenser (615) with mist.

5. The fresh air handling unit according to any one of claims 1 to 4, wherein the moving unit (51) comprises a driving mechanism (511), a transmission screw (512) and a screw nut (513), the screw nut (513) is sleeved on the transmission screw (512), the transmission screw (512) is disposed at an output end of the driving mechanism (511), the driving mechanism (511) is fixedly disposed between the first inlet (11) and the first filter module (4), the driving mechanism (511) is configured to drive the transmission screw (512) to rotate forward or backward so as to make the screw nut (513) move back and forth along a length direction of the transmission screw (512), and the length direction of the transmission screw (512) corresponds to an extension direction of the first filter module (4);

the sterilization unit (52) is fixedly arranged on the screw nut (513).

6. Fresh air handling unit according to claim 5, characterised in that the sterilisation module (5) further comprises:

a housing (53) disposed between the first inlet (11) and the first filtration module (4), the housing (53) having the driving mechanism (511) fixedly disposed therein;

the sliding rail (54) is fixedly arranged in the shell (53) and is parallel to the transmission screw rod (512);

the sliding block (55) is fixedly connected with the sterilization unit (52), a through hole is formed in the sliding block (55), and the sliding block (55) is sleeved on the sliding rail (54) through the through hole so that the sterilization unit (52) can move along the length directions of the sliding rail (54) and the transmission screw rod (512).

7. The fresh air handling unit according to claim 6, wherein the driving mechanism (511) comprises a driving motor and a coupling, the driving motor is fixedly arranged on the housing (53), and one end of the coupling is connected to an output end of the driving motor.

8. The fresh air handling unit of claim 6, further comprising:

a second filter module (7) disposed on a side of the sterilization module (5) facing away from the first filter module (4), the second filter module (7) being configured to filter air passing through the first inlet (11).

9. The fresh air handling unit of claim 6, further comprising:

be provided with joint structure (14) in fresh air pipeline (1), casing (53) with joint structure (14) can dismantle the connection.

10. The fresh air handling unit according to claim 9, wherein an elastic conductive plate (15) is disposed in the clamping structure (14), a conductive plate (56) is disposed at a position of the casing (53) corresponding to the elastic conductive plate (15), the conductive plate (56) is electrically connected to the sterilization unit (52), and the elastic conductive plate (15) is electrically connected to the conductive plate (56) when the casing (53) is clamped to the clamping structure (14).