Multifunctional fresh air handling unit

Abstract

The utility model belongs to the technical field of air purification and ventilation systems, and discloses a multifunctional fresh air handling unit. The multifunctional fresh air handling unit comprises a unit shell, a low-efficiency filter, a sub-high-efficiency filter, a sterilizer, a first check valve, a second check valve, a first control valve and a second control valve, a first air duct and a second air duct are formed in the unit shell, the low-efficiency filter is arranged in the unit shell and used for filtering air entering the first air duct and the second air duct, and the sub-high-efficiency filter is arranged in the unit shell. The sub-efficient filter and the sterilizer are arranged in the second air duct, the first check valve and the second check valve are used for preventing air from flowing back, and the first control valve and the second control valve are used for controlling whether air passes through the first air duct and the second air duct or not. By means of the multifunctional fresh air handling unit, flexible switching among three operation modes of daily ventilation, epidemic situation ventilation and air disinfection can be achieved according to the air quality of the external environment and the indoor environment, so that the air quality requirements and public health requirements in different scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to air purification and ventilation system technical field especially, it relates to a multi -functional fresh air handling unit. BACKGROUND

[0002] With the vigorous development of social economy, large traffic hub buildings such as airport, railway station, subway station gradually become the public places of high population density. The requirement of these places to ventilation system is increasingly stringent, not only need to meet the basic demand of daily ventilation and air quality improvement, also need to have the ability of rapid response and efficient air purification and disinfection in the public health emergency (for example epidemic). However, the current fresh air system has many deficiencies:

[0003] First, the function is relatively single. The traditional fresh air system mainly focuses on daily ventilation design, lacks specific mode for public health emergencies, and is difficult to meet the urgent needs of efficient filtration and air disinfection.

[0004] Second, the energy consumption is high. The existing fresh air system is difficult to achieve ideal balance between air volume and energy consumption, and air volume regulation often depends on the increase of power, which causes high system operation cost and low energy utilization rate.

[0005] Therefore, a multi -functional fresh air handling unit for traffic hub building is needed to solve the above technical problems. INVENTION CONTENTS

[0006] The utility model aims at providing a multi -functional fresh air handling unit, can have the function of efficient filtration and air disinfection, and the energy consumption is low.

[0007] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0008] Multi -functional fresh air handling unit for traffic hub building, comprising:

[0009] Unit shell, the unit shell has air inlet and air outlet, and the unit shell is formed with first air duct and second air duct inside, the first air duct and the second air duct are connected to the air inlet and the air outlet, the air inlet is selectively connected to one of external environment and indoor environment, and the air outlet is connected to the indoor environment;

[0010] Coarse filter, the coarse filter is arranged in the unit shell and is used for filtering the air entering the first air duct and the second air duct;

[0011] Sub-high efficiency filter, the sub-high efficiency filter is arranged in the second air duct;

[0012] Killer, the killer is arranged in the second air duct;

[0013] a first check valve for preventing air from flowing from the air outlet into the first air duct;

[0014] a second check valve for preventing air from flowing from the air outlet into the second air duct;

[0015] a first control valve for controlling whether air passes through the first air duct;

[0016] a second control valve for controlling whether air passes through the second air duct.

[0017] Preferably, the unit housing comprises a first region, a second region, a third region and a partition plate, the first region is connected with the air inlet, the third region is connected with the air outlet, the second region is arranged between the first region and the third region, the partition plate is arranged in the second region and separates the second region into the first air duct and the second air duct, one end of the first air duct is connected with the first region, the other end of the first air duct is connected with the third region, one end of the second air duct is connected with the first region, the other end of the second air duct is connected with the third region.

[0018] Preferably, the coarse filter comprises a first filter and a second filter, the first filter is detachably arranged at one end of the first air duct close to the first region, and the second filter is detachably arranged at one end of the second air duct close to the first region.

[0019] Preferably, the multifunctional fresh air handling unit further comprises a coil section, the coil section is arranged in the third region, and the coil section is used for adjusting the temperature and humidity of air.

[0020] Preferably, the sterilization device comprises an ultraviolet lamp sterilization device, and the ultraviolet lamp sterilization device is detachably mounted in the unit housing.

[0021] Preferably, the multifunctional fresh air handling unit further comprises an air quality detector, the air quality detector is mounted in the unit housing and arranged at the air inlet, and the air quality detector is used for detecting the quality of air flowing into the unit housing.

[0022] Preferably, the multifunctional fresh air handling unit further comprises a controller, the controller is signal connected with the air quality detector, the sterilization device, the first control valve and the second control valve, and the controller is configured to read the detection result of the air quality detector and control the working state of the sterilization device, the first control valve and the second control valve.

[0023] As preferably, the multifunctional fresh air handling unit further comprises a signal transceiver, which is signal connected to the controller, and is used to signal connect the controller and an external control device.

[0024] As preferably, the multifunctional fresh air handling unit further comprises a fan, which is arranged in the third area, and is used to drive the air in the first air duct or the second air duct to flow out of the air outlet.

[0025] As preferably, the multifunctional fresh air handling unit further comprises a sealing valve, which is installed on the unit shell and is used to seal the air outlet, and is configured to seal the air outlet when the fan stops conveying air.

[0026] The multifunctional fresh air handling unit has the advantages that: according to the air quality of the external environment and the indoor environment, the multifunctional fresh air handling unit can realize flexible switching among the three operation modes of daily ventilation, epidemic ventilation and air disinfection, so as to meet the air quality demand and public health requirement in different scenes, and reduce the comprehensive energy consumption. Meanwhile, the first check valve and the second check valve can avoid unstable airflow control, prevent airflow backflow and mixed flow during the air duct switching process, and guarantee the ventilation effect and air quality. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the multifunctional fresh air handling unit provided by the utility model.

[0028] In the drawings:

[0029] 1, air inlet; 2, air quality detector; 3, first filter; 4, first control valve; 5, first check valve; 6, coil section; 7, fan; 8, sealing valve; 9, air outlet; 10, unit shell; 11, second filter; 12, second control valve; 13, sub-high-efficiency filter; 14, disinfecting device; 15, second check valve. DETAILED DESCRIPTION

[0030] The utility model will be further described in detail in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all the structures.

[0031] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix", "abutment" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation. For ordinary skilled in the art, the above-mentioned term can be understood in the utility model with the concrete meaning of the specific situation.

[0032] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features directly contact, also can include the first and second features are not directly contact but contact through the other features between them. Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0033] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "right", "left" and the like is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore can not be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0034] The following will be described according to the accompanying Figure 1 The utility model provides a multi -functional fresh air handling unit for traffic hub building.

[0035] As Figure 1 As shown in the embodiment, the multi -functional fresh air handling unit includes unit shell 10, coarse filter, sub high -efficient filter 13, kill ware 14, first check valve 5, second check valve 15, first control valve 4 and second control valve 12, the air duct is formed in unit shell 10, and the coarse filter, sub high -efficient filter 13, kill ware 14, first check valve 5, second check valve 15, first control valve 4 and second control valve 12 can filter, kill and control the air flowing through the air duct, so as to realize different effects.

[0036] Specifically, as Figure 1As shown, one end of the unit housing 10 has an air inlet 1, and the other end has an air outlet 9. Inside the unit housing 10, a first air duct (the area indicated by arrow B1 in the figure) and a second air duct (the area indicated by arrow B2 in the figure) are formed, and the two ends of the first air duct are connected to the air inlet 1 and the air outlet 9 respectively, and the two ends of the second air duct are also connected to the air inlet 1 and the air outlet 9 respectively. The air inlet 1 is selectively connected to one of the external environment and the indoor environment, and the air outlet 9 is connected to the indoor environment. A coarse filter is arranged in the unit housing 10, which can filter the air entering the first air duct and the second air duct. A sub-high efficiency filter 13 and a sterilizer 14 are arranged in the second air duct, the sub-high efficiency filter 13 can further filter the air passing through the coarse filter, and the sterilizer 14 can sterilize the filtered air to remove pathogens in the air. A first control valve 4 is arranged in the first air duct, which can control whether the air passes through the first air duct and flows out of the air outlet 9; a second control valve 12 is arranged in the second air duct, which can control whether the air passes through the second air duct and flows out of the air outlet 9. A first check valve 5 is arranged at the end of the first air duct, which can prevent air from flowing reversely from the air outlet 9 into the first air duct; a second check valve 15 is arranged at the end of the second air duct, which can prevent air from flowing reversely from the air outlet 9 into the second air duct.

[0037] In use, by controlling the first control valve 4, the second control valve 12 and the sterilizer 14, the supply of fresh air can be carried out in three different modes.

[0038] For example, when the external air quality is high, the daily ventilation mode can be adopted, that is, the first control valve 4 is opened, the second control valve 12 is closed, and the air inlet 1 is connected to the external environment, so that the external air can pass through the unit housing 10 only through the first air duct, thereby meeting the requirement of providing fresh air in the transportation hub building with less energy consumption. When the external air quality is poor (for example, there are more pollen and more viruses), the epidemic ventilation mode can be adopted, that is, the first control valve 4 is closed, the second control valve 12 and the sterilizer 14 are opened, and the air inlet 1 is connected to the external environment, so that the external air can enter the indoor environment after being filtered and sterilized for multiple times to meet the air purification standard. When the indoor air quality is poor, the air sterilization mode can also be adopted, that is, the first control valve 4 is closed, the second control valve 12 and the sterilizer 14 are opened, and the air inlet 1 is connected to the indoor environment, so that the indoor air can circulate and be filtered and sterilized for multiple times to kill bacteria and viruses in the air, thereby ensuring the safety of the indoor environment.

[0039] Through the multifunctional fresh air handling unit described above, flexible switching between the three operation modes of daily ventilation, epidemic ventilation and air disinfection can be realized according to the air quality of the external environment and the indoor environment, so as to meet the air quality demand and public health requirement in different scenes, and reduce the comprehensive energy consumption. At the same time, the first check valve 5 and the second check valve 15 can avoid unstable airflow control, prevent airflow backflow and mixing during the air duct switching process, and ensure the ventilation effect and air quality.

[0040] More specifically, in the present embodiment, the unit housing 10 comprises a first region (as indicated by arrow A in the figure), a second region, a third region (as indicated by arrow C in the figure) and a partition plate. The first region is connected with the air inlet 1, the third region is connected with the air outlet 9, and the second region is arranged between the first region and the third region. The partition plate is arranged in the second region and divides the second region into a first air duct and a second air duct. One end of the first air duct is connected to the first region, the other end of the first air duct is connected to the third region, one end of the second air duct is connected to the first region, and the other end of the second air duct is connected to the third region.

[0041] The coarse filter can remove large particles in the air, such as dust, sand, etc. In the present embodiment, the coarse filter comprises a first filter 3 and a second filter 11. The first filter 3 is detachably arranged at one end of the first air duct close to the first region, and the second filter 11 is detachably arranged at one end of the second air duct close to the first region. The first filter 3 and the second filter 11 work respectively and can be independently removed and maintained, realizing modular installation and being conducive to reducing the maintenance cost of the multifunctional fresh air handling unit.

[0042] Further, in the second air duct, along the flow direction of the air, the sub-high efficiency filter 13 and the sterilization device 14 are sequentially and detachably installed in the unit housing 10. The sub-high efficiency filter 13 can remove finer particles such as pollen, bacteria, etc., achieving further purification of the air and being conducive to improving the sterilization effect of the sterilization device 14. The sterilization device 14 preferably adopts a UV lamp sterilization device, which can quickly kill pathogens in an irradiation manner, so that the air quality after filtration and sterilization meets the public health requirements.

[0043] Continuing to refer to Figure 1As shown, in the present embodiment, the third region is also detachably provided with a coil section 6, and the coil section 6 is provided with a refrigerant flowing therein. By inputting refrigerants with different temperatures, the temperature and humidity of the air can be adjusted. The third region is also detachably provided with a fan 7, which can drive the filtered air to flow through the first air duct or the second air duct and flow out of the air outlet 9. Since the air driven is filtered air, the fan 7 also has a long service life and low maintenance cost. Preferably, the fan 7 is designed to have constant air volume and adjustable power, which can adjust the power according to different operation modes, thereby achieving energy saving and avoiding excessive energy consumption. The fan 7 always maintains stable air volume during operation, and the power can be adjusted adaptively to optimize energy efficiency and maintain air flow.

[0044] Of course, in some embodiments, the fan 7 can also be provided at the air outlet 9 or downstream of the air outlet 9. The position of the fan 7 in the utility model is not limited as long as it can achieve the effect of driving air flow.

[0045] Preferably, the multifunctional fresh air handling unit is also provided with a sealing valve 8, which is installed on the unit housing 10 and is used to seal the air outlet 9. The sealing valve 8 can seal the air outlet 9 when the fan 7 stops conveying air. Exemplarily, the sealing valve 8 is an electric valve with an AC 220V power supply, which can automatically open when the fan 7 is running and automatically seal when the fan 7 stops, ensuring that air cannot flow reversely from the air outlet 9 when the fan 7 stops, preventing airflow diversion and cross infection.

[0046] Optionally, in the present embodiment, the multifunctional fresh air handling unit is also provided with an air quality detector 2, which is installed at the air inlet 1 and is used to monitor the particulate matter concentration, CO2 content and other air quality indicators of the air in real time. The operator can reasonably select the daily ventilation mode or the epidemic ventilation mode according to the detection results of the air quality detector 2.

[0047] Further, the multifunctional fresh air handling unit is also provided with a controller, which is signal connected to the air quality detector 2, the sterilizer 14, the first control valve 4 and the second control valve 12 through connection lines. The controller can read the detection results of the air quality detector 2 and control the working states of the sterilizer 14, the first control valve 4 and the second control valve 12. Exemplarily, when the controller reads that the detection results of the air quality detector 2 are poor air quality outside, it can close the first control valve 4, open the second control valve 12 and the sterilizer 14 according to the epidemic ventilation mode, and connect the air inlet 1 and the external environment, so that the external air meets the air purification standard after being filtered and sterilized for multiple times, and then enters the indoor environment. Optionally, the controller is also signal connected to the fan 7 and can be used to adjust the power of the fan 7.

[0048] Further, in the embodiment, the multifunctional fresh air handling unit is further provided with a signal transceiver connected to the controller, and the signal transceiver is used for signal connection between the controller and an external control device, so that adjustment through the external control device is facilitated.

[0049] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, all the implementation modes do not need to be exhausted. Any modification, equivalent substitution and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-functional fresh air handling unit for use in transportation hub buildings, characterized in that: include: The unit housing (10) has an air inlet (1) and an air outlet (9), and a first air duct and a second air duct are formed inside the unit housing (10). The first air duct and the second air duct are both connected to the air inlet (1) and the air outlet (9). The air inlet (1) is selectively connected to one of the external environment and the indoor environment, and the air outlet (9) is connected to the indoor environment. A coarse filter is disposed inside the unit housing (10) and is used to filter the air entering the first air duct and the second air duct; A sub-high efficiency filter (13) is disposed in the second air duct; A disinfection device (14) is disposed in the second air duct; The first check valve (5) is used to prevent air from flowing into the first air duct from the air outlet (9); The second check valve (15) is used to prevent air from flowing into the second air duct from the air outlet (9); The first control valve (4) is used to control whether air passes through the first air duct; The second control valve (12) is used to control whether air passes through the second air duct.

2. The multifunctional fresh air handling unit according to claim 1, characterized in that, The unit housing (10) includes a first region, a second region, a third region, and an isolation plate. The first region is connected to the air inlet (1), and the third region is connected to the air outlet (9). The second region is located between the first region and the third region. The isolation plate is located in the second region and divides the second region into a first air duct and a second air duct. One end of the first air duct is connected to the first region, and the other end of the first air duct is connected to the third region. One end of the second air duct is connected to the first region, and the other end of the second air duct is connected to the third region.

3. The multifunctional fresh air handling unit according to claim 2, characterized in that, The coarse filter includes a first filter (3) and a second filter (11). The first filter (3) is detachably disposed at one end of the first air duct near the first region, and the second filter (11) is detachably disposed at one end of the second air duct near the first region.

4. The multifunctional fresh air handling unit according to claim 2, characterized in that, The multi-functional fresh air handling unit also includes: A coil section (6) is provided in the third region and is used to regulate the temperature and humidity of the air.

5. The multifunctional fresh air handling unit according to claim 1, characterized in that, The disinfection device (14) includes an ultraviolet lamp disinfection device, which is detachably installed inside the unit housing (10).

6. The multifunctional fresh air handling unit according to claim 1, characterized in that, Also includes: An air quality detector (2) is installed on the unit housing (10) and located at the air inlet (1). The air quality detector (2) is used to detect the air quality flowing into the unit housing (10).

7. The multifunctional fresh air handling unit according to claim 6, characterized in that, Also includes: The controller is connected to the air quality detector (2), the disinfection device (14), the first control valve (4), and the second control valve (12). The controller is configured to read the detection result of the air quality detector (2) and control the working state of the disinfection device (14), the first control valve (4), and the second control valve (12).

8. The multifunctional fresh air handling unit according to claim 7, characterized in that, Also includes: A signal transceiver is connected to the controller and is used to connect the controller to an external control device.

9. The multifunctional fresh air handling unit according to claim 2, characterized in that, Also includes: A fan (7) is provided in the third area and is used to drive the air in the first air duct or the second air duct to flow out from the air outlet (9).

10. The multifunctional fresh air handling unit according to claim 9, characterized in that, Also includes: A shut-off valve (8) is installed on the unit housing (10) and used to seal the air outlet (9), and the shut-off valve (8) is configured to seal the air outlet (9) when the fan (7) stops supplying air.

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