A fan coil unit air sterilizer

Abstract

This utility model discloses a fan coil air sterilizer, including an air outlet duct, an air inlet duct, a fan coil unit assembly, and a plasma purification and sterilization device. The air outlet duct, fan coil unit assembly, plasma purification and sterilization device, and air inlet duct are sequentially integrated and connected. A primary filter device is connected and installed at the inlet end of the air inlet duct. The primary filter device includes a filter pipe, one end of which is connected to the inlet end of the air inlet duct, and the other end is equipped with a second panel. A filter element is embedded in the filter pipe. This utility model rationally integrates the primary filter device, plasma purification and sterilization device, and fan coil unit assembly. The fan coil unit assembly forms indoor air circulation. The circulated air enters this utility model to achieve effects such as dust removal, disinfection and deodorization, and temperature regulation. This utility model can maintain indoor air quality to meet the requirements of medical or pharmaceutical indoor environments.

Description

Technical Field

[0001] This utility model relates to the field of indoor air conditioning equipment technology, and more specifically, to a fan coil air sterilizer. Background Technology

[0002] Fan coil units are common terminal devices in air conditioning systems. They circulate indoor air and regulate indoor air parameters by cooling or heating the circulating air to create a comfortable indoor environment. Fan coil units are also used in medical or pharmaceutical indoor environments. In these environments, fan coil products not only need to meet cooling or heating requirements but also need to satisfy a range of needs such as air sterilization, dust removal, and odor elimination. Therefore, companies need to design a fan coil unit-type air sterilization device that integrates the fan coil unit with an air sterilization unit to meet market demand. This case study was developed to address this need. Utility Model Content

[0003] The purpose of this utility model is to address the needs of the prior art and provide a fan coil air sterilizer. This utility model integrates a primary filter, a plasma purification and sterilization device, and a fan coil unit in a reasonable layout. The fan coil unit forms an indoor air circulation, and the circulated air enters this utility model to achieve effects such as dust removal, disinfection and deodorization, and temperature regulation. This utility model can maintain the indoor air to meet the requirements of medical or pharmaceutical indoor environments.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fan coil unit type air sterilizer includes an air outlet duct, an air inlet duct, a fan coil unit assembly, and a plasma purification and sterilization device. The inlet end of the air outlet duct is connected to the outlet end of the fan coil unit assembly, and a first panel is installed at the outlet end of the air outlet duct. The inlet end of the fan coil unit assembly is connected to the outlet end of the plasma purification and sterilization device, and the inlet end of the plasma purification and sterilization device is connected to the outlet end of the air inlet duct. A primary filter device is installed at the inlet end of the air inlet duct. The primary filter device includes a filter pipe, one end of which is connected to the inlet end of the air inlet duct, and the other end is equipped with a second panel. A filter element is embedded in the filter pipe.

[0006] Furthermore, the filter element includes a main filter plate, a secondary filter plate, and an intermediate seat. The main filter plate and the secondary filter plate are arranged parallel to each other vertically. The main filter plate and the secondary filter plate are respectively connected and installed on the two end faces of the intermediate seat in the height direction. The intermediate seat is hollow inside. The filter element is arranged and installed with the main filter plate facing the second panel.

[0007] Furthermore, a main air inlet is provided on the second panel, which is located corresponding to the position of the main filter plate.

[0008] Furthermore, the primary filter also includes two anti-impact components, which are symmetrically installed on the outside of the filter pipe. The second panel has two auxiliary air inlets, each adapted to one of the two anti-impact components.

[0009] Furthermore, the backwash assembly includes a backwash fan, an exhaust duct, and a backwash pipe. The backwash fan is fixedly installed on the outer wall of the filter pipe. One end of the exhaust duct is connected to an auxiliary air inlet, and the other end is connected to the inlet end of the backwash fan. The backwash pipe is fixedly connected to the outer wall of the filter pipe and is installed at an angle. The outlet end of the backwash pipe extends into the inner side of the filter pipe. The inlet end of the backwash pipe is connected to the outlet end of the backwash fan, and the outlet end of the backwash pipe faces the main filter plate.

[0010] Furthermore, the backflushing pipe is positioned between the main filter plate and the secondary filter plate, and a notch is provided on the side wall of the intermediate seat, with the outlet end of the backflushing pipe corresponding to the notch.

[0011] Furthermore, the second panel has two backflow exhaust vents, which are symmetrically arranged on both sides of the main air inlet. The backflow exhaust vents are fitted with covers, and the covers are fitted with mesh.

[0012] Furthermore, the main air inlet is equipped with an electrically controlled louver device, which creates the opening and closing effect of the main air inlet. When the anti-impact component is activated, the louver device must close the main air inlet.

[0013] The beneficial effects of this utility model are:

[0014] 1. The design layout of this utility model is reasonable. It forms indoor air circulation through fan coil unit. The circulating air passes through the primary filter, plasma purification and disinfection device and fan coil unit in sequence to achieve the effects of dust removal, disinfection and deodorization, and temperature regulation. This utility model can keep the indoor air in a medical or pharmaceutical indoor environment that meets the usage requirements.

[0015] 2. This utility model is designed for the applicability of primary filtration devices. Compared with the single filter plate design of traditional air sterilizers, the filter element of this utility model adopts a double filter plate design, which has two filtration functions and better dust removal effect. In addition, this utility model is designed with a backwashing structure for the main filter plate, which can automatically clean the dust on the main filter plate without disassembling the machine. This design can extend the effective service life of the filter element and significantly reduce the frequency of disassembly and maintenance, thereby meeting the use needs in medical or pharmaceutical indoor environments. Attached Figure Description

[0016] Figure 1 This is a side view of the connection structure of a fan coil air sterilizer in this embodiment;

[0017] Figure 2 This is a cross-sectional view of the connection structure between the primary filter and the air inlet duct in this embodiment;

[0018] Figure 3 This is a front view of the second panel in this embodiment.

[0019] Reference numerals: 1. Air outlet duct; 11. First panel; 2. Air inlet duct; 3. Fan coil unit assembly; 4. Plasma purification and disinfection device; 5. Primary filter device; 51. Filter duct; 52. Filter element; 52. Main filter plate; 521. Secondary filter plate; 522. Intermediate seat; 523. Notch groove; 524. Backlash assembly; 53. Backlash fan; 531. Exhaust duct; 532. Backlash pipe; 533. Second panel; 6. Main air inlet; 61. Louver device; 62. Backlash exhaust outlet; 63. Cover; 64. Mesh surface; 641. Auxiliary air inlet; 65. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-3The illustrated fan coil air sterilizer includes an outlet duct 1, an inlet duct 2, a fan coil unit 3, and a plasma purification and sterilization device 4. This invention integrates the outlet duct 1, the fan coil unit 3, the plasma purification and sterilization device 4, and the inlet duct 2 sequentially. The fan coil unit 3 provides the power to generate airflow. Air enters from the inlet duct 2, passes through the plasma purification and sterilization device 4 and the fan coil unit 3, and is then discharged from the outlet duct 1, thus creating an air circulation effect. The inlet end of the outlet duct 1 is connected to the outlet end of the fan coil unit 3; the outlet end of the outlet duct 1 is the exhaust port. A first panel 11 is installed at the outlet end, covering the outlet end of the air duct 1, enabling orderly exhaust. The inlet end of the fan coil unit 3 is connected to the outlet end of the plasma purification and disinfection device 4, which in turn is connected to the outlet end of the air inlet duct 2. A primary filter 5 is installed at the inlet end of the air inlet duct 2, which includes a filter pipe 51. One end of the filter pipe 51 is connected to the inlet end of the air inlet duct 2, and the other end is equipped with a second panel 6. A filter element 52 is embedded in the filter pipe 51. A main air inlet 61 is provided on the second panel 6, which is the entry point for circulating air. The circulating air first enters the primary filter 5, which provides dust removal and filtration. Then, the air enters the plasma purification and disinfection device 4 through the air inlet duct 2, where it sterilizes and deodorizes. Next, the air enters the fan coil unit 3, where it is heated or cooled as needed. After a series of treatments, the air is discharged from the outlet duct 1. This invention features a reasonable structural design and can be installed entirely above the indoor ceiling. The first panel 11 and the second panel 6 can be adapted to connect to the ceiling panel. This invention integrates the fan coil unit 3, the plasma purification and disinfection device 4, and the primary filter. The filter device 5 and other components can maintain a suitable temperature and humidity indoors, and also remove dust, disinfect, and deodorize the indoor air, ensuring the cleanliness of the indoor air. This utility model product is suitable for use in medical or pharmaceutical indoor environments. In this utility model, the fan coil unit 3 and the plasma purification and disinfection device 4 are existing technologies, and their structures will not be described in detail here. The fan coil unit 3 is mainly composed of a fan and a coil. The fan can create airflow, and the coil can heat or cool the flowing air. The plasma purification and disinfection device 4 relies on the ionization effect of the electric field to decompose bacteria and other substances in the air, thereby achieving the effects of sterilization, disinfection, and odor elimination.

[0022] In conventional air sterilizers, dust removal relies on the filter structure. A thin filter plate is installed in conventional air sterilizers to block large dust particles in the air. After a period of use, dust accumulates on the filter plate, and the problem worsens. Dust accumulation reduces airflow efficiency and decreases the quality of dust removal and filtration. The current practice is to disassemble and clean the filter plate every 2-3 months to ensure its working quality. However, this operation is not suitable for medical and pharmaceutical rooms. First, disassembling the filter plate requires breaking open the ceiling air inlet of the medical and pharmaceutical rooms, which can easily cause large-scale indoor pollution. Second, medical and pharmaceutical rooms are used frequently, and frequent maintenance of the filter plate cannot be allowed to affect the work progress. Considering the special usage requirements of medical and pharmaceutical room environments, this utility model has made an applicable design for the primary filter device 5.

[0023] like Figure 2 As shown, the filter element 52 includes a main filter plate 521, a secondary filter plate 522, and an intermediate seat 523. The main filter plate 521 and the secondary filter plate 522 are arranged parallel to each other vertically. The main filter plate 521 and the secondary filter plate 522 are respectively connected and installed on the two end faces of the intermediate seat 523 in the height direction. The intermediate seat 523 serves to separate and install the main filter plate 521 and the secondary filter plate 522, forming a gap between them. The interior of the intermediate seat 523 is hollow to avoid affecting airflow. The filter element 52 is fully fitted and inserted into the filter pipe 51. The filter element 52 is arranged with the main filter plate 521 facing the second panel 6. The air drawn in from the second panel 6 is first filtered by the main filter plate 521, and then... After filtration by the secondary filter plate 522, the main filter plate 521 and the secondary filter plate 522 form a two-stage filtration effect, significantly improving dust removal quality and meeting the high dust removal quality requirements of medical and pharmaceutical environments. The main air inlet 61 on the second panel 6 corresponds to the position of the main filter plate 521. As the first stage of filtration, dust accumulation mainly occurs on the mesh surface of the main filter plate 521. Our main focus is on designing a solution to handle the dust accumulation on the mesh surface of the main filter plate 521 (of course, dust will also accumulate on the mesh surface of the secondary filter plate 522, but if the dust accumulation on the mesh surface of the secondary filter plate 522 is severe, it is necessary to disassemble the filter element 52 for replacement and cleaning). The dust accumulation on the mesh surface of the main filter plate 521 needs to be handled without opening the second panel 6. Therefore, as follows... Figure 2 As shown, the present invention further includes a back-impact assembly 53 in the primary filter device 5. Two back-impact assemblies 53 are installed, symmetrically mounted on the outside of the filter pipe 51. Figure 3As shown, the second panel 6 has two auxiliary air inlets 65, which are respectively adapted to two anti-impact components 53. In this utility model, the area of ​​the second panel 6 is larger than the opening area of ​​the filter pipe 51. The two auxiliary air inlets 65 are located outside the opening area of ​​the filter pipe 51. The auxiliary air inlets 65 only provide air intake support for the anti-impact components 53. The main air inlet 61 of the second panel 6 is located inside the opening area of ​​the filter pipe 51 and provides air intake support for the air intake pipe 2. When the anti-impact components 53 are not activated, the air intake channel is cut off, and the auxiliary air inlets 65 do not have the function of air intake.

[0024] like Figure 2 As shown, the backwash assembly 53 includes a backwash fan 531, an exhaust duct 532, and a backwash pipe 533. The backwash fan 531 is fixedly installed on the outer wall of the filter duct 51. One end of the exhaust duct 532 is connected to an auxiliary air inlet 65, and the other end is connected to the inlet end of the backwash fan 531. The backwash pipe 533 is fixedly connected to the outer wall of the filter duct 51 and is installed at an angle. The outlet end of the backwash pipe 533 extends into the inner side of the filter duct 51. The inlet pipe of 3 is connected to the outlet of the backwash fan 531 (via flexible hose). The backwash fan 531 creates a suction effect, drawing air through the auxiliary air inlet 65 and discharging it from the outlet of the backwash pipe 533 to generate backwash pressure. The outlet of the backwash pipe 533 is positioned towards the main filter plate 521, and the backwash pressure acts on the main filter plate 521 to remove accumulated dust. The backwash pipe 533 is located between the main filter plate 521 and the secondary filter plate 522. The middle seat 523 has a notch 524 on its side wall. When the filter element 52 is installed, the notch 524 needs to be aligned with the outlet end of the backwash pipe 533 so as not to affect the entry of backwash air. Since the backwash pipe 533 is located between the main filter plate 521 and the secondary filter plate 522, the outlet end of the backwash pipe 533 is directly opposite the inner mesh surface of the main filter plate 521. When the product is normally inhaling air, the dust accumulated by dust removal is on the outer mesh surface of the main filter plate 521. The backwash air pressure impacts the inner mesh surface of the main filter plate 521, which can disperse and wash off the dust on the outer mesh surface. The backwash air is drawn from the room and will also contain large dust particles. However, due to the presence of the secondary filter plate 522 above, the air that finally enters the air inlet duct 2 is still dust-removed. The backwash frequency of this product is set according to the indoor conditions. In general medical and pharmaceutical room environments, backwashing once a day is sufficient, and each backwashing time is 10-20 seconds.

[0025] In this invention, the backflow air cannot be directly discharged from the main air inlet 61 of the second panel 6, because the backflow air, carrying down accumulated dust, would cause serious indoor pollution if discharged directly from the main air inlet 61. Therefore, as Figure 3As shown, this utility model has an electrically controlled louver device 62 (similar to an air conditioner air inlet design) installed corresponding to the main air inlet 61. The opening and closing effect of the main air inlet 61 is achieved by controlling the rotation of the louver device 62. When the anti-impact component 53 is activated, the louver device 62 must close the main air inlet 61. Figure 2 and Figure 3 As shown, this utility model has two backflow exhaust vents 63 on the second panel 6. The two backflow exhaust vents 63 are symmetrically arranged on both sides of the main air inlet 61. After the main air inlet 61 is closed, the two backflow exhaust vents 63 have the effect of exhausting backflow air (the backflow exhaust vents 63 are also within the area of ​​the filter pipe opening). The backflow exhaust vents 63 are equipped with cover 64, which is inserted into the backflow exhaust vents 63 on the second panel 6 from top to bottom. A mesh surface 641 is installed on the cover 64. While the backflushing air is being discharged, the dust in the backflushing air is blocked and retained inside the cover 64 by the mesh 641. The dust accumulation inside the cover 64 can be seen from the mesh 641. When there is a lot of dust, the cover 64 can be removed and replaced. The cover 64 has a small area and is easy to remove. Its removal does not require breaking the second panel 6. The louver device 62 of the main air inlet 61 of this utility model cannot completely seal the main air inlet 61. A small amount of air output does not affect the backflushing operation (it will not cause pollution that has a significant impact on the room).

[0026] After designing a special primary filter device 5 structure, the filtration and dust removal effect is better. Due to the backwash design, the main filter plate 521 mesh surface can be effectively cleaned, significantly extending the effective service life of the filter element 52. The frequency of disassembly and maintenance is greatly reduced, which can meet the use needs in medical or pharmaceutical indoor environments, making this utility model have a very good market sales prospect.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A fan coil unit type air sterilizer, characterized in that, The device includes an air outlet duct (1), an air inlet duct (2), a fan coil unit (3), and a plasma purification and disinfection device (4). The inlet end of the air outlet duct (1) is connected to the outlet end of the fan coil unit (3). A first panel (11) is installed at the outlet end of the air outlet duct (1). The inlet end of the fan coil unit (3) is connected to the outlet end of the plasma purification and disinfection device (4). The inlet end of the plasma purification and disinfection device (4) is connected to the outlet end of the air inlet duct (2). A primary filter device (5) is installed at the inlet end of the air inlet duct (2). The primary filter device (5) includes a filter pipe (51). One end of the filter pipe (51) is connected to the inlet end of the air inlet duct (2), and the other end is installed with a second panel (6). A filter element (52) is embedded in the filter pipe (51).

2. The fan coil unit type air sterilizer according to claim 1, characterized in that, The filter element (52) includes a main filter plate (521), a secondary filter plate (522) and an intermediate seat (523). The main filter plate (521) and the secondary filter plate (522) are arranged in parallel vertically. The main filter plate (521) and the secondary filter plate (522) are respectively connected and installed on the two end faces of the intermediate seat (523) in the height direction. The intermediate seat (523) is hollow inside. The filter element (52) is arranged and installed with the main filter plate (521) facing the second panel (6).

3. The fan coil unit type air sterilizer according to claim 2, characterized in that, The second panel (6) has a main air inlet (61) which is located at the position of the main filter plate (521).

4. The fan coil unit type air sterilizer according to claim 3, characterized in that, The primary filter device (5) also includes a back-impact assembly (53). The number of back-impact assemblies (53) is two. The two back-impact assemblies (53) are symmetrically installed on the outside of the filter pipe (51). The second panel (6) has two auxiliary air inlets (65). The two auxiliary air inlets (65) are respectively adapted to the two back-impact assemblies (53).

5. The fan coil unit type air sterilizer according to claim 4, characterized in that, The backwash assembly (53) includes a backwash fan (531), an exhaust duct (532), and a backwash pipe (533). The backwash fan (531) is fixedly installed on the outer wall of the filter pipe (51). One end of the exhaust duct (532) is connected to an auxiliary air inlet (65), and the other end is connected to the inlet end of the backwash fan (531). The backwash pipe (533) is fixedly connected to the outer wall of the filter pipe (51). The backwash pipe (533) is installed at an angle. The outlet end of the backwash pipe (533) extends through the inner side of the filter pipe (51). The inlet end of the backwash pipe (533) is connected to the outlet end of the backwash fan (531). The outlet end of the backwash pipe (533) is set towards the main filter plate (521).

6. The fan coil unit type air sterilizer according to claim 5, characterized in that, The backwash pipe (533) is located between the main filter plate (521) and the secondary filter plate (522). The side wall of the intermediate seat (523) is provided with a notch (524), and the outlet end of the backwash pipe (533) is provided corresponding to the notch (524).

7. The fan coil unit type air sterilizer according to claim 3, characterized in that, The second panel (6) has two backflow exhaust ports (63), which are symmetrically arranged on both sides of the main air inlet (61). The backflow exhaust ports (63) are equipped with cover (64), and the cover (64) is equipped with a mesh (641).

8. The fan coil unit type air sterilizer according to claim 4, characterized in that, The main air inlet (61) is equipped with an electrically controlled louver device (62), which forms the opening and closing effect of the main air inlet (61). When the anti-impact component (53) is activated, the louver device (62) must close the main air inlet (61).

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