Component for filter unit, filter unit and air purification system

Abstract

The invention relates to a component (10) for a filter unit (100), the component having a nozzle element (12) having a first diameter (14) towards the filter unit (100), the nozzle element (12) further having a second diameter (16) which is greater than the first diameter (14), whereby the flow resistance of the air flow from the filter unit (100) through the nozzle element (12) is reduced, a wind guide element (18) being provided for at least partially accelerating the air pulses entering the filter unit (100) in order to improve the cleaning performance in the filter unit (100).

Description

Technical Field

[0001] This invention relates to a component for a filter unit, a filter unit, and an air purification system. Background Technology

[0002] Currently, there are numerous different solutions for the design of air-guiding components on filter assemblies. With the increasing diversity of air filter solutions in the air purification system field, and the continuous improvement in quality and performance requirements, the demand for innovative, durable, and energy-efficient air purifiers continues to grow. Summary of the Invention

[0003] The embodiments of the invention can advantageously provide an improved component for a filter unit. The invention is defined in the independent claims. Advantageous improvements of the invention are derived from the dependent claims and the description thereafter.

[0004] The component having the features of claim 1 has the advantage that cleaning performance is improved by accelerating the air pulse. This is because an air pulse in the opposite direction to the airflow effectively removes particles or the like deposited in the filter element. Accelerating the air pulse enhances this effect. Another advantage of the invention is that the component can be installed or added to existing filter units, thereby allowing for controlled modifications to the filter unit to avoid prolonged downtime and achieve low pressure loss. Furthermore, better cleaning / rinsing can be achieved during normal operation with low pressure loss, thereby extending the service life of the filter unit and reducing the overall operating cost of the filter unit.

[0005] According to the invention, this is achieved by having the component for the filter unit have a nozzle element having a first diameter facing the filter unit, and the nozzle element also having a second diameter larger than the first diameter, thereby reducing the flow resistance of airflow from the filter unit through the nozzle element. Furthermore, the component also has an air guide element configured to at least partially accelerate the air pulses entering the filter unit in order to improve the cleaning performance of the filter unit.

[0006] In other words, the airflow passes through the filter element and along the member in a first direction, where the flow resistance is reduced by means of the nozzle element. Furthermore, it is preferable to clean the filter element of the filter unit by means of an air pulse in a second direction substantially opposite to the first direction, which can be accelerated by the air guide element to further improve the cleaning effect on the filter unit. It is preferable to reduce the static pressure at the nozzle inlet by drawing in the maximum amount of secondary air to improve the cleaning performance of the filter unit. For example, air can flow through the filter element and exit the filter interior via the member. Energy loss occurs primarily due to the formation of vortices at the outlet when exiting through the member. By matching the second diameter of the member to the first diameter, the flow can better conform to the geometry, thereby increasing the outlet diameter for a given volumetric flow rate and thus reducing the outlet velocity, resulting in less energy loss. For example, the first diameter can be located at the end of the member facing the filter unit, and the second diameter can be located at the opposite end of the member. Furthermore, the air guide element of the member is designed to enhance cleaning performance even in the case of an air pulse. The widening of the component to improve airflow resistance allows a larger portion of the effective free jet providing the air pulse to be intercepted. This free jet can then be accelerated by flowing into the nozzle element. In particular, a guide element can be positioned within the air pulse to further accelerate the flow. More preferably, the component can be integrally manufactured, for example by plastic injection molding, so that the nozzle element and the guide element are formed during the initial molding of the component.

[0007] The dependent claims provide preferred improvements to the invention.

[0008] More preferably, the air guide element divides the nozzle element into a first region between the nozzle element and the air guide element and a second region inside the air guide element. The air guide element is configured to accelerate an air pulse in the second region, and the nozzle element is configured to draw ambient air in the first region based on the accelerated air pulse, so as to further improve the cleaning performance of the filter unit.

[0009] The advantage of this implementation is that secondary flow occurs in the first region due to the acceleration of the air pulse and the resulting reduction in static pressure, which allows additional air to be introduced into the interior of the filter unit, thereby further improving the cleaning performance of the filter unit.

[0010] More preferably, the nozzle element has a first ventilation surface related to a first diameter, the nozzle element has a second ventilation surface related to a second diameter, and the air guide element has a third ventilation surface disposed on the side of the air guide element facing away from the filter unit, wherein the combination of the second ventilation surface and the third ventilation surface is larger than the first ventilation surface.

[0011] The advantage of this embodiment is that, although the ventilation surface in the nozzle element is reduced due to the inclusion of the air guide element and the possible connecting plate, the addition of a third ventilation surface does not obstruct the volume flow from the filter unit.

[0012] More preferably, the third ventilation surface is offset relative to the second ventilation surface along the rotation axis of the nozzle element to increase the area of ​​the combination.

[0013] The advantage of this embodiment is that, since the third ventilation surface is offset relative to the second ventilation surface along the axis of rotation, it is not necessary to increase the extension width of the component in order to increase the combination of the second and third ventilation surfaces.

[0014] More preferably, the ratio of the combination of the second and third ventilation surfaces to the first ventilation surface is set to reduce the flow resistance of the airflow from the filter unit.

[0015] The advantage of this embodiment is that the ratio can be selected such that the structural space for the component is kept small, while the flow resistance remains low, so that the combination is kept within an optimal ratio relative to the first ventilation surface.

[0016] Preferably, the air guide element has a fourth ventilation surface facing the filter unit, and the fourth ventilation surface is significantly smaller than the third ventilation surface, thereby accelerating the air pulse through the air guide element.

[0017] The advantage of this embodiment is that the convergent profile of the air guide element can concentrate the air pulse to the center of the filter element, thereby achieving uniform cleaning performance within the filter element.

[0018] More preferably, the component has at least one snap-fit ​​element configured to be at least partially embedded in the filter unit in order to secure the component to the filter unit.

[0019] The advantage of this embodiment is that the component can be easily added to an existing system using the snap-fit ​​element. More preferably, the snap-fit ​​element may have a cross-section or shape optimized for flow, thereby further improving the guidance of air pulses and / or airflow within the component. Here, in particular, the shape of the snap-fit ​​element can further reduce airflow separation at the edges of the component. This also reduces overall pressure loss or thereby increases the potential lifespan of the filter.

[0020] Preferably, the air guide element is configured to receive air pulses substantially entirely from the valve device.

[0021] The advantage of this implementation is that the air guide element receives the free jet of air in the form of a pulse from the valve device almost entirely by means of the air guide element, which is designed to intercept the free jet, at least on the side facing away from the filter unit.

[0022] More preferably, the air guide element is disposed on the nozzle element via at least one connecting plate.

[0023] The advantage of this embodiment is that the air guide element can be held in a predetermined position within the nozzle element, thereby further reducing air resistance.

[0024] More preferably, the connecting plate is configured to reduce airflow vortices within the nozzle element.

[0025] The advantage of this embodiment is that the cross-section of the connecting plate or the like can be adjusted to further reduce air resistance within the nozzle element, thereby preventing the generation of eddies or similar phenomena.

[0026] More preferably, the component has a predetermined region with a plurality of molded portions arranged in a predetermined pattern, the plurality of molded portions being configured to form a boundary layer for turbulence in order to reduce the flow resistance of the predetermined region.

[0027] The advantage of this embodiment is that, by means of the plurality of recesses, a turbulent boundary layer can be formed between the airflow within the component and the nozzle element, thereby further increasing air resistance or ensuring that the airflow adheres to the nozzle element surface for a longer period of time.

[0028] More preferably, the predetermined area is at least partially disposed on the nozzle element, the air guide element, the snap-fit ​​element and / or the connecting plate.

[0029] The advantage of this implementation is that the plurality of forming sections can be adjusted accordingly in relation to the corresponding areas, such as nozzle elements, to further reduce flow resistance.

[0030] More preferably, the plurality of molded portions each have substantially spherical recesses, which are configured in accordance with the predetermined pattern to form a golf ball-shaped structure.

[0031] Another aspect of the invention relates to a filter unit having components and filter elements as described above and below, the filter elements being configured to filter out predetermined selected components / elements from an airflow, the components being configured to reduce flow resistance of the airflow through the filter unit, and the components being configured to accelerate air pulses acting on the components in order to clean the filter elements.

[0032] The advantage of this implementation is that, by improving the cleaning performance of the filter elements, the maximum operating time of the filter elements in the filter unit can be further extended.

[0033] Another aspect of the invention relates to an air purification system having the components as described above and below and / or the filter units as described above and below.

[0034] Furthermore, it should be noted that the term "unit" in this application should be interpreted broadly, including both integrated unit configurations and multi-part configurations. Each sub-unit is not necessarily located at one position in the filter unit or air purification system, but can also be distributed on the filter unit or the air purification system.

[0035] All disclosures described above and below with respect to one aspect of the invention are equally applicable to all other aspects of the invention. Attached Figure Description

[0036] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The contents of each drawing are as follows:

[0037] Figure 1 and 2 The components are shown according to one implementation.

[0038] Figure 3 A filter unit according to one implementation is shown.

[0039] Figure 4 The components are shown according to one implementation.

[0040] Figure 5 An air purification system according to one embodiment is shown. Detailed Implementation

[0041] The accompanying drawings are schematic only and are not to scale. Identical, identical, or similar elements in the drawings may use the same reference numerals.

[0042] Figure 1 A component 10 for a filter unit 100 is shown, the component having a nozzle element 12 having a first diameter 14 facing the filter unit 100, and a second diameter 16 larger than the first diameter 14, thereby reducing the flow resistance of airflow from the filter unit 100 through the nozzle element 12. Furthermore, the component 10 also has an air guide element 18 configured to at least partially accelerate the air pulses entering the filter unit 100 in order to improve the cleaning performance of the filter unit 100.

[0043] In addition, such as Figure 1 As can be seen, a valve device 200 can be provided above component 10. The valve device 200 can generate air pulses, which are accelerated by means of the air guide element 18. Furthermore, the air guide element 18 can divide the nozzle element 12 into a first region 20 and a second region 22. The first region 20 is preferably formed between the air guide element 18 and the nozzle element 12. The second region 22 is preferably located inside the air guide element 18. The air guide element 18 can preferably be fixed to the nozzle element 12 or component 10 by means of multiple connecting plates 38. The inner sides of the air guide element 18 and the nozzle element 12 preferably have multiple shaped portions 42 in a predetermined region 40, which are arranged according to a predetermined pattern 44, so that a golf ball-shaped structure can be formed, for example.

[0044] Figure 2 Component 10 is shown according to one embodiment. Figure 2 The component 10 is shown in cross-sectional view to further illustrate its operating principle. Component 10 has a nozzle element 12, which includes a first diameter 14 and a second diameter 16. Here, the second diameter 16 is larger than the first diameter 14. An air guide element 18 is at least partially disposed inside the nozzle element 12. The air guide element 18 preferably divides the nozzle element 12 into a first region 20 and a second region 22. The first region 20 is preferably disposed between the nozzle element 12 and the air guide element 18. The second region 22 is disposed inside the air guide element 18. The second region 22 of the air guide element 18 is preferably designed such that it can accelerate air pulses, for example, by configuring the air guide element 18 into a funnel-shaped structure. The air pulses flowing out of the air guide element 18 create at least a temporary negative pressure in the first region 20, thereby allowing the accelerated air pulses to introduce ambient air into the filter element 102 of the filter unit through the first region 20.

[0045] like Figure 2 As shown, the first diameter 14 of component 10 preferably forms a first ventilation surface 24. For example... Figure 2 As shown, the first ventilation surface can be circular. Furthermore, the second diameter 16 forms a second ventilation surface 26, which can also be circular. The air guide element 18 preferably has a third ventilation surface 28, which is disposed on the side 30 of the air guide element 18 facing away from the filter unit 100. Here, the combination of the second ventilation surface 26 and the third ventilation surface 28 is preferably larger than the first ventilation surface 24.

[0046] In particular, by offsetting the third ventilation surface 28 relative to the second ventilation surface 26 along the rotation axis 32 of the nozzle element 12, the combination can be increased relative to the first ventilation surface 24.

[0047] like Figure 2 As shown, the ratio between the combination of the second ventilation surface 26 and the third ventilation surface 28 and the first ventilation surface 24 is preferably set to reduce the flow resistance of the airflow from the filter unit.

[0048] The air guiding element 18 preferably has a fourth ventilation surface 34 facing the filter unit 100. This fourth ventilation surface 34 is significantly smaller than the third ventilation surface 28, thereby accelerating the air pulse through the air guiding element 18. For example, in Figure 2 As shown, the air guide element 18 can be configured in a funnel shape, such that the fourth ventilation surface 34 is larger than the third ventilation surface 28. The component 10 preferably has a plurality of snap-fit ​​elements 36 for securing the component to the filter unit 100. More preferably, the air guide element 18 can be configured according to the valve device 200, such that the air guide element 18 is configured to receive substantially all air pulses from the valve device 200.

[0049] More preferably, the air guide element 18 is disposed on the nozzle element 12 via a connecting plate 38, the connecting plate 38 being configured to reduce vortices in the airflow inside the nozzle element 12.

[0050] More preferably, the component 10 has a predetermined region 40 in which a plurality of forming parts 42 are arranged according to a preset pattern 44 so as to form a turbulent boundary layer, thereby reducing the flow resistance of the predetermined region 40.

[0051] More preferably, the predetermined area 40 is at least partially disposed on the nozzle element 12, the air guide element 18, the snap-fit ​​element 36, and / or the connecting plate 38. For example... Figure 2 As shown, the inner and outer sides of the nozzle element 12, the snap-fit ​​element 36, and the air guide element 18 preferably each have the predetermined region 40 with a plurality of shaped portions 42.

[0052] More preferably, such as in Figure 2 As shown, the plurality of molding portions 42 are configured as substantially spherical recesses 46 so as to thereby form a golf ball-shaped structure in conjunction with the predetermined pattern 44.

[0053] Figure 3 A filter unit 100 according to one embodiment is shown. The filter unit 100 has a component 10 and a filter element 102 as described above and below. The filter element is configured to filter out predetermined components from the airflow. Meanwhile, the component 10 is configured to reduce the flow resistance of the airflow through the filter unit 100, and the component 10 is configured to accelerate the air pulse acting on the component 10 in order to clean the filter element 102.

[0054] Figure 4 A component 10 according to one embodiment is shown. The component 10 has a nozzle element 12 and an air guide element 18 at least partially disposed within the nozzle element 12. Air pulses from the valve device 200 are preferably accelerated by the air guide element 18 to improve cleaning performance in the filter unit 100. The air guide element 18 preferably forms a first region 20 and a second region 22, where the first region 20 is disposed between the nozzle element 12 and the air guide element 18, and the second region 22 is disposed within the air guide element. Air pulses from the valve device 200 are preferably introduced substantially entirely into the second region 22 to further accelerate them. Through the acceleration of the air pulses, ambient air can be drawn in through the first region 20. More preferably, the snap-fit ​​element 36 of the component 10 is at least partially embedded in the filter unit 100, thereby enabling easy installation of the component 10.

[0055] Figure 5 An air purification system 300 according to one embodiment is shown. The air purification system 300 preferably has components 10 as described above and below and / or filter units 100 as described above and below.

Claims

1. A component (10) for a filter unit (100), said component having: The nozzle element (12) has a first diameter (14) facing the filter unit (100) and a second diameter (16) larger than the first diameter (14), thereby reducing the flow resistance of the airflow from the filter unit (100) through the nozzle element (12). An air guide element (18) is configured to at least partially accelerate the air pulses entering the filter unit (100) in order to improve the cleaning performance in the filter unit (100).

2. The component (10) according to claim 1, wherein, The air guide element (18) divides the nozzle element (12) into a first region (20) between the nozzle element (12) and the air guide element (18) and a second region (22) inside the air guide element (18). The air guide element (18) is configured to accelerate an air pulse in the second region (22). The nozzle element (12) is configured to draw ambient air in the first region (20) based on the accelerated air pulse to further improve the cleaning performance of the filter unit (100).

3. The component (10) according to any one of the preceding claims, wherein, The nozzle element (12) has a first ventilation surface (24) associated with the first diameter (14), the nozzle element (12) has a second ventilation surface (26) associated with the second diameter (16), and the air guide element (18) has a third ventilation surface (28) disposed on the side (30) of the air guide element (18) facing away from the filter unit (100). The combination of the second ventilation surface (26) and the third ventilation surface (28) is larger than the first ventilation surface (24).

4. The component (10) according to claim 3, wherein, The third ventilation surface (28) is offset relative to the second ventilation surface (26) along the rotation axis (32) of the nozzle element (12) to increase the area of ​​the combination.

5. The component (10) according to any one of claims 3 to 4, wherein, The ratio between the combination of the second ventilation surface (26) and the third ventilation surface (28) and the first ventilation surface (24) is set to reduce the flow resistance of the airflow from the filter unit (100).

6. The component (10) according to any one of claims 3 to 5, wherein, The air guide element (18) has a fourth ventilation surface (34) facing the filter unit (100), and the fourth ventilation surface (34) is significantly smaller than the third ventilation surface, so that the air pulse is accelerated through the air guide element (18).

7. The component (10) according to any one of the preceding claims, wherein, The component (10) has at least one snap-fit ​​element (36) configured to be at least partially embedded in the filter unit (100) in order to secure the component (10) to the filter unit (100).

8. The component (10) according to any one of the preceding claims, wherein, The air guide element (18) is configured to receive air pulses from the valve device (200) substantially completely.

9. The component (10) according to any one of the preceding claims, wherein, The air guide element (18) is disposed on the nozzle element (12) by means of at least one connecting plate (38).

10. The component (10) according to claim 9, wherein, The connecting plate (38) is configured to reduce turbulence of the airflow within the nozzle element (12).

11. The component (10) according to any one of the preceding claims, wherein, The predetermined area (40) on the component (10) has a plurality of forming portions (42) in a predetermined pattern (44), the plurality of forming portions (42) being configured to form a boundary layer for turbulence in order to reduce the flow resistance of the predetermined area (40).

12. The component (10) according to any one of claims 11 and 9 or 7, wherein, The predetermined area is at least partially disposed on the nozzle element (12), the air guide element (18), the snap-fit ​​element (36), and / or the connecting plate (38).

13. The component (10) according to any one of claims 11 to 12, wherein, The plurality of molding portions (42) each have a substantially spherical recess (46) that is configured in conjunction with the predetermined pattern (44) to form a golf ball-shaped structure.

14. A filter unit (100) having a component (10) and a filter element (102) as described in any one of claims 1 to 13, the filter element being configured to filter out predetermined selected components from an airflow, the component (10) being configured to reduce flow resistance of the airflow through the filter unit (100), and the component (10) being configured to accelerate an air pulse acting on the component (10) to clean the filter element (102).

15. An air purification system (300) having a component (10) according to any one of claims 1 to 13 and / or a filter unit (100) according to claim 14.

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