Filtering equipment and air purification system

Abstract

The embodiment of the utility model relates to the technical field of air filtration, and particularly discloses filtering equipment and an air purification system, and the filtering equipment comprises a shell, a filter, a fan and a flow guide structure, the shell is provided with an inner cavity, a mounting port and an air inlet, and the mounting port and the air inlet are both communicated with the inner cavity; the filter is arranged at the mounting opening; the fan is arranged in the shell and located in the inner cavity, the fan comprises an air inlet part and an air outlet part, the air inlet part is communicated with the air inlet, the air outlet part is communicated with the inner cavity, and external air flows into the air inlet part from the air inlet in the first direction, then flows into the inner cavity from the air outlet part and finally flows out of the filtering equipment from the filter; the flow guide structure is arranged on the shell and comprises a windward side, the windward side is used for guiding air flowing out of the air outlet part to the filter, and the windward side is arranged to be in a streamline shape. According to the embodiment of the utility model, the filtering efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model discloses an air filtering technical field, in particular to a kind of filtering equipment and air purification system. BACKGROUND

[0002] FFU filtering unit is a kind of air purification equipment of fan, filter in an organic whole. It generates air flow by fan, and dust, bacteria and other pollutants in air are trapped on filter, so as to realize the purification of air.

[0003] The inventor of the utility model in the process of realizing the utility model, it is found that: the current FFU filtering unit's wind resistance is high, and the filtering efficiency is low. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a kind of filtering equipment and air purification system, can improve filtering efficiency.

[0005] To solve the above technical problems, one of the technical solutions of the utility model is: provide a kind of filtering equipment, filtering equipment includes shell, filter, fan and flow guide structure;Shell is provided with inner chamber, installation port and air inlet, and installation port and air inlet are all communicated with inner chamber;Filter is set in installation port;Fan is set in shell, and fan is located in inner chamber, and fan includes air inlet part and air outlet part, air inlet part is communicated with air inlet, air outlet part is communicated with inner chamber, gas from air inlet part flows into air inlet part from air inlet along first direction, and then from air outlet part to inner chamber, finally from filter to flow out filtering equipment;Flow guide structure is set in shell, and flow guide structure includes windward surface, and windward surface is used to guide the gas that flows out from air outlet part to filter, and the shape of windward surface is set as streamline.

[0006] Optionally, the filter material is polytetrafluoroethylene.

[0007] Optionally, the shell includes a filter screen connected to the air inlet so that the gas flows into the air inlet part after passing through the filter screen.

[0008] Optionally, the fan is a centrifugal fan so that the gas flows out of the air outlet part along a direction perpendicular to the first direction;Along the first direction, the two ends of the air outlet part are sequentially a first end and a second end.

[0009] Optionally, the flow guide structure includes a first flow guide member, and the windward surface includes a first windward surface, and the first flow guide member is arranged in the inner chamber;The first flow guide member is arranged around the air outlet part, one end of the first flow guide member is arranged on the inner wall of the shell, and the other end of the first flow guide member and the inner wall of the shell form a first airflow outlet, the side of the first flow guide member facing the air outlet part is arranged as the first windward surface, the first windward surface is a curved surface, and the curved surface is concave in a direction away from the air outlet part.

[0010] Optionally, the filtering device further comprises a connecting plate, the connecting plate is arranged on the inner wall of the shell, and the second end is arranged on the connecting plate; the inner wall of the shell, the air outlet part, the first windward surface and the connecting plate enclose to form a first flow guide area.

[0011] Optionally, two first flow guide members are arranged, and the two first flow guide members are symmetrically arranged about the center of the fan.

[0012] Optionally, the flow guide structure further comprises a second flow guide member, the second flow guide member is arranged on the shell and located in the inner cavity; the windward surface comprises a second windward surface, the side of the second flow guide member facing the air outlet part is arranged as the second windward surface, along the first direction, the position of the second windward surface matches the position of the first end, and the second windward surface forms an included angle with the first direction, so that the gas flowing to the second windward surface is guided to the filter.

[0013] Optionally, the flow guide structure further comprises a third flow guide member, the third flow guide member is arranged on the shell and located in the inner cavity; the windward surface comprises a third windward surface, the side of the third flow guide member facing the air outlet part is arranged as the third windward surface, along the first direction, the position of the third windward surface matches the position of the second end, and the third windward surface forms an included angle with the first direction, so that the gas flowing to the third windward surface is guided to the filter.

[0014] To solve the above technical problems, another technical scheme adopted by the utility model is to provide an air purification system comprising the filtering device according to any one of the above embodiments.

[0015] The utility model embodiment has the advantages that, different from the prior art, the utility model embodiment provides a filtering device, which comprises a shell, a filter, a fan and a flow guide structure. The shell is provided with an inner cavity, a mounting opening and an air inlet, and the mounting opening and the air inlet are both communicated with the inner cavity; the filter is arranged in the mounting opening; the fan is arranged in the shell and located in the inner cavity, and the fan comprises an air inlet part and an air outlet part, the air inlet part is communicated with the air inlet, the air outlet part is communicated with the inner cavity, the gas from the outside flows into the air inlet part along a first direction, then flows to the inner cavity from the air outlet part, and finally flows out of the filtering device from the filter; the flow guide structure is arranged in the shell and comprises a windward surface, the windward surface is used for guiding the gas flowing out of the air outlet part to the filter, and the shape of the windward surface is streamlined. By arranging the windward surface in a streamlined shape, the wind resistance of the windward surface is reduced, thereby improving the filtering efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained according to the drawings without creative labor for those skilled in the art.

[0017] Figure 1 is a perspective view of the filtering equipment according to an embodiment of the present application;

[0018] Figure 2 is an exploded view of the filtering equipment according to an embodiment of the present application;

[0019] Figure 3 is an exploded view of the shell according to an embodiment of the present application;

[0020] Figure 4 is a perspective view of the connecting plate according to an embodiment of the present application;

[0021] Figure 5 is an exploded view of the fan according to an embodiment of the present application;

[0022] Figure 6 is a schematic view of the flow guide structure according to an embodiment of the present application;

[0023] Figure 7 is a schematic view of the position of the flow guide structure relative to the fan according to an embodiment of the present application;

[0024] Figure 8 is a schematic view of the first flow guide area and the second flow guide area according to an embodiment of the present application.

[0025] Explanation of reference signs:

[0026] 100, filtering equipment;

[0027] 1, shell; 11, top plate; 111, air inlet; 12, side plate; 13, filter screen; 14, inner cavity; 141, first flow guide area; 142, second flow guide area; 143, first air outlet; 144, second air outlet;

[0028] 2, filter;

[0029] 3, fan; 31, air inlet part; 32, air outlet part; 321, first end; 322, second end; 33, connecting pipe;

[0030] 4, flow guide structure; 41, first flow guide member; 411, first windward surface; 42, second flow guide member; 421, second windward surface; 43, third flow guide member; 431, third windward surface;

[0031] 5, connecting plate; 51, flow guide surface; 511, third air outlet; 52, flow guide plate. DETAILED DESCRIPTION

[0032] For the convenience of understanding the utility model, the utility model will be explained in more detail below in combination with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the specification are only for the purpose of illustration.

[0033] Unless otherwise defined, all technical and scientific terms used in the specification are intended to have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0034] Please refer to Figure 1 and Figure 2 The filter device 100 comprises a shell 1, a filter 2, a fan 3, a flow guide structure 4 and a connecting plate 5. The filter 2 is arranged in the shell 1, and the fan 3 is arranged in the shell 1. The fan 3 inhales the gas outside into the shell 1 and then discharges it through the filter 2, thereby realizing the filtration of the gas. The flow guide structure 4 is arranged in the shell 1, and the flow guide structure 4 is used for guiding the gas in the shell 1 to the filter 2, thereby improving the filtration efficiency.

[0035] For the above-mentioned shell 1, please refer to Figure 3 , and further refer to Figure 1 and Figure 2 The shell 1 comprises a top plate 11, a side plate 12 and a filter screen 13. One end of the side plate 12 is connected to the edge of the top plate 11, and the other end of the side plate 12 is enclosed to form a mounting port. The top plate 11 is arranged as a rectangular plate, and four side plates 12 are arranged, one side plate 12 being connected to one edge of the top plate 11. Two side plates 12 are arranged in opposite directions along a second direction, and the other two side plates 12 are arranged in opposite directions along a third direction. The first direction, the second direction and the third direction are perpendicular to each other. The top plate 11 is provided with an air inlet 111, and the filter screen 13 is connected to the air inlet 111. The top plate 11 and the side plate 12 enclose an inner cavity 14, and the air inlet 111 and the mounting port are both in communication with the inner cavity 14. When the gas flows into the air inlet 111 along the first direction, it enters the inner cavity 14 after being filtered by the filter screen 13 to avoid damage to the fan 3 caused by foreign matters. The side plate 12 is arranged parallel to the first direction to sequentially arrange the air inlet 111 and the mounting port along the first direction.

[0036] For the above-mentioned filter 2, please refer to Figure 1 and Figure 2The filter 2 is arranged in the mounting port, and the filter 2 is made of polytetrafluoroethylene. For a traditional material, when the fiber aperture is small, the resistance is high; and when the fiber aperture is large, the efficiency is low. The fiber aperture of the filter 2 in the embodiment of the utility model is smaller, the fiber diameter is thinner, and the surface of the fiber is smoother. Through the above arrangement, the embodiment of the utility model effectively reduces the wind resistance under the condition of ensuring the unchanged filtering efficiency, thereby reducing the load of the fan 3 and reducing the energy consumption.

[0037] For the above-mentioned connecting plate 5, please refer to Figure 4 , combined with Figure 1 and Figure 3 , along the direction parallel to the second direction, the two ends of the connecting plate 5 are fixedly connected to the inner walls of the two side plates 12 respectively. Along the direction parallel to the third direction, the two ends of the connecting plate 5 form a second air outlet 144 (see Figure 8 ) between the two side plates 12 respectively. The top plate 11, the connecting plate 5 and the filter 2 are arranged in sequence along the first direction. The side of the connecting plate 5 opposite to the top plate 11 is provided with a flow guide surface 51, and the flow guide surface 51 is arranged perpendicular to the first direction. The connecting plate 5 is provided with a flow guide plate 52, and the flow guide plate 52 is arranged inclined to the first direction, and the flow guide plate 52 is arranged at the edge of the flow guide surface 51 and the second air outlet 144.

[0038] For the above-mentioned fan 3, please refer to Figure 5 , combined with Figure 1 , Figure 3 and Figure 4 , the fan 3 is arranged between the top plate 11 and the connecting plate 5, and along the first direction, the two ends of the fan 3 are connected to the top plate 11 and the connecting plate 5 respectively. The fan 3 comprises an air inlet part 31, an air outlet part 32 and a connecting pipe 33, and the air inlet part 31 is connected to the air inlet 111 through the connecting pipe 33. Along the first direction, the two ends of the air outlet part 32 are a first end 321 and a second end 322 in sequence, and the second end 322 of the fan 3 is arranged on the flow guide surface 51. The gas from outside flows into the air inlet part 31 from the air inlet 111 along the first direction, and then flows to the inner cavity 14 from the air outlet part 32. The gas flowing out of the air outlet part 32 flows to the second air outlet 144 (see Figure 8 ) along the flow guide surface 51, and then flows to the filter 2 from the second air outlet 144. The fan 3 is a backward inclined centrifugal fan, so that the air outlet direction of the air outlet part 32 is perpendicular to the first direction. Moreover, the backward inclined centrifugal fan has high efficiency, small energy consumption and low noise.

[0039] For the above-mentioned flow guide structure 4, please refer to Figure 6The flow guide structure 4 includes a windward surface, which includes a first windward surface 411, a second windward surface 421 and a third windward surface 431. The shape of the windward surface is streamlined to reduce wind resistance. The flow guide structure 4 includes a first flow guide 41, a second flow guide 42 and a third flow guide 43, which are all arranged on the inner wall of the shell 1 (see Figure 2 and Figure 3 ). The first flow guide 41 is arranged as the first windward surface 411 towards one side of the air outlet 32, the second flow guide 42 is arranged as the second windward surface 421 towards one side of the air outlet 32 (see Figure 5 ), and the third flow guide 43 is arranged as the third windward surface 431 towards one side of the air outlet 32.

[0040] In combination with Figure 1 , Figure 4 , Figure 7 and Figure 8 , for the first flow guide 41 described above, in the first direction, the two ends of the first flow guide 41 are connected to the inner wall of the top plate 11 and the flow guide surface 51 of the connecting plate 5 (see Figure 4 ) respectively. The first flow guide 41 is arranged on one side of the fan 3, and the first flow guide 41 is arranged around the air outlet 32. In the second direction, the first flow guide 41 is arranged between the two opposite side plates 12, one end of the first flow guide 41 is connected to one of the side walls, and the other end of the first flow guide 41 and the other side wall form a first airflow outlet 143. The first windward surface 411 is arranged as a curved surface, which is concave in the direction away from the fan 3. The first flow guide 41 is provided with two, which are symmetrically distributed about the center of the fan 3. The first flow guide 41 divides the inner cavity 14 into a first flow guide area 141 and a second flow guide area 142, and the inner wall of the shell 1, the air outlet 32, the first flow guide 41 and the connecting plate 5 form the first flow guide area 141.

[0041] For the second flow guide 42 described above, the second flow guide 42 is arranged in the second flow guide area 142, and the second flow guide 42 is arranged in the circumferential direction of the inner cavity 14. The second flow guide 42 is arranged between the top plate 11 and the side plate 12. The second windward surface 421 is a plane, one end of the second windward surface 421 is connected to the inner wall of the top plate 11, and the other side of the second windward surface 421 is connected to the inner wall of the side plate 12, so that the second windward surface 421 forms an angle with the first direction, so that the gas flowing to the second windward surface 421 is guided to the filter 2. In the first direction, the position of the second windward surface 421 matches the position of the first end 321 of the fan 3.

[0042] For the third flow guide 43 described above, the third flow guide 43 is arranged in the second flow guide area 142. Two third flow guides 43 are arranged, and the two third flow guides 43 are arranged on the two side plates 12 arranged opposite to each other along the third direction. The third windward surface 431 is arranged as a plane, and an included angle is formed between the third windward surface 431 and the first direction, so that the gas flowing to the third windward surface 431 is guided to the filter 2. Optionally, an obtuse angle formed between the third windward surface 431 and the inner wall of the side plate 12 is arranged towards the air outlet 32, and an acute angle formed between the third windward surface 431 and the inner wall of the side plate 12 is arranged towards the filter 2. Along the first direction, the position of the third windward surface 431 matches the position of the second end 322 of the fan 3. Optionally, along the first direction, the end of the third windward surface 431 close to the filter 2 and the flow guide surface 51 are arranged in sequence.

[0043] In some embodiments, the flow guide surface 51 is provided with a third gas flow outlet 511, which is located between the side plate 12 and the side of the first flow guide 41 away from the first windward surface 411, so that the gas between the side of the first flow guide 41 away from the first windward surface 411 and the side plate 12 can flow to the filter 2 through the third gas flow outlet 511, improving the flow guiding effect of the connecting plate 5.

[0044] It can be understood that the gas flowing out of the air outlet 32 flows into the first flow guide area 141, and the gas in the first flow guide area 141 flows into the second flow guide area 142 under the guidance of the first windward surface 411 and the flow guide surface 51. Part of the gas in the second flow guide area 142 flows to the second gas flow outlet 144 and the third gas flow outlet 511, and another part of the gas is guided to the second gas flow outlet 144 and the third gas flow outlet 511 under the guidance of the first windward surface 411. The gas flowing into the second gas flow outlet 144 flows to the filter 2 under the guidance of the third windward surface 431 and the flow guide plate 52, and the gas flowing into the third gas flow outlet 511 flows to the filter 2. The first windward surface 411, the second windward surface 421 and the third windward surface 431 are all streamline-shaped, thereby reducing the wind resistance. And the first windward surface 411, the second windward surface 421, the third windward surface 431, the flow guide surface 51, the flow guide plate 52, the third gas flow outlet 511, the inner wall of the top plate 11 and the inner wall of the side plate 12 cooperate to guide the gas to the filter 2, thereby improving the filtering efficiency.

[0045] In the embodiment of the utility model, filter equipment 100 includes casing 1, filter 2, fan 3 and flow guide structure 4. Casing 1 is provided with inner chamber 14, mounting port and air inlet 111, and the mounting port and air inlet 111 are both communicated with the inner chamber 14; filter 2 is arranged in the mounting port; fan 3 is arranged in casing 1, and fan 3 is located in the inner chamber 14, and fan 3 includes air inlet part 31 and air outlet part 32, air inlet part 31 is communicated with air inlet 111, air outlet part 31 is communicated with the inner chamber 14, and the gas from the outside flows into air inlet part 31 from air inlet 111 along the first direction, then flows to the inner chamber 14 from air outlet part 32, and finally flows out of filter equipment 100 from filter 2; flow guide structure 4 is arranged in casing 1, and flow guide structure 4 includes windward surface, and the windward surface is used for guiding the gas flowing out of air outlet part 32 to filter 2, and the shape of the windward surface is set as streamline. By setting the windward surface as streamline, the wind resistance of the windward surface is reduced, thereby improving the filtration efficiency.

[0046] The utility model provides air purification system's embodiment, and air purification system includes above -mentioned filter equipment 100, and the structure and function of filter equipment 100 can refer to above -mentioned embodiment, and here will not be repeated.

[0047] It should be noted that the specification and drawings of the utility model give the preferred embodiments of the utility model, but the utility model can be realized by many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not as additional limitation to the content of the utility model, and the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Furthermore, the above technical features continue to combine, form various embodiments not listed above, and are regarded as the range of the specification of the utility model; further, for those skilled in the art, the above description can be improved or changed, and all these improvements and changes should belong to the protection scope of the claims of the utility model.

Claims

1. A filter device, characterized in that The filter device comprises: a shell provided with an inner cavity, a mounting port and an air inlet port, the mounting port and the air inlet port both communicating with the inner cavity; a filter arranged in the mounting port; a fan arranged in the shell, the fan being located in the inner cavity, the fan comprising an air inlet part and an air outlet part, the air inlet part communicating with the air inlet port, the air outlet part communicating with the inner cavity, external gas flowing into the air inlet part from the air inlet port in a first direction, then flowing to the inner cavity from the air outlet part, and finally flowing out of the filter device from the filter; a flow guide structure arranged in the shell, the flow guide structure comprising a windward surface, the windward surface being used to guide the gas flowing out of the air outlet part to the filter, the shape of the windward surface being arranged as a streamline shape.

2. The filter apparatus of claim 1, wherein, The filter material is polytetrafluoroethylene.

3. The filter apparatus of claim 1, wherein, The shell comprises a filter screen connected to the air inlet port, so that the gas flows into the air inlet part after passing through the filter screen.

4. The filter device according to any one of claims 1 to 3, characterized in that The fan is a centrifugal fan, so that the gas flows out of the air outlet part in a direction perpendicular to the first direction; In the first direction, the two ends of the air outlet part are sequentially a first end and a second end.

5. The filter apparatus of claim 4, wherein, The flow guide structure comprises a first flow guide member, the windward surface comprises a first windward surface, and the first flow guide member is arranged in the inner cavity; The first flow guide member is arranged around the air outlet part, one end of the first flow guide member is arranged on the inner wall of the shell, a first air flow outlet is formed between the other end of the first flow guide member and the inner wall of the shell, the side of the first flow guide member facing the air outlet part is arranged as the first windward surface, the first windward surface is a curved surface, and the curved surface is concave in a direction away from the air outlet part.

6. The filter apparatus of claim 5, wherein, The filter device further comprises a connecting plate arranged on the inner wall of the shell, and the second end is arranged on the connecting plate; The inner wall of the shell, the air outlet part, the first windward surface and the connecting plate enclose a first flow guide area.

7. The filter apparatus of claim 5, wherein, The first flow guide member is provided with two first flow guide members arranged symmetrically about the center of the fan.

8. The filter apparatus of claim 4, wherein, The flow guide structure further comprises a second flow guide member arranged in the shell and located in the inner cavity; The windward surface comprises a second windward surface, the side of the second flow guide member facing the air outlet part is arranged as the second windward surface, the position of the second windward surface matches the position of the first end in the first direction, and the second windward surface forms an included angle with the first direction, so that the gas flowing to the second windward surface is guided to the filter.

9. The filter apparatus of claim 4, wherein, The flow guide structure further comprises a third flow guide member arranged in the shell and located in the inner cavity; The windward surface comprises a third windward surface, the side of the third flow guide member facing the air outlet part is arranged as the third windward surface, the position of the third windward surface matches the position of the second end in the first direction, and the third windward surface forms an included angle with the first direction, so that the gas flowing to the third windward surface is guided to the filter.

10. An air purification system characterized by, The filter device comprises any one of claims 1-9.

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