Filtering unit and precise filtering device with same

Abstract

The invention provides a filtering unit and a precision filtering device with the filtering unit, and the filtering unit comprises a connecting ring, the first cylinder body is connected with the connecting ring, and a plurality of first hole bodies are formed in the first cylinder body in an array mode; the diameter of the second cylinder body is smaller than that of the first cylinder body, the second cylinder body is arranged in the first cylinder body, and a plurality of second hole bodies are arranged on the second cylinder body in an array mode; the filtering structure is arranged between the first barrel and the second barrel. According to the technical scheme, the problem that the filtering effect of a filter element in the related technology is poor is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a filter unit and a precision filtering device having the same. Background Art

[0002] The filter is an indispensable device on the pipeline for conveying media, which is used to remove impurities in the media. The precision filter element is the key component of the filter. The filtering performance of the filter depends on the structure of the filter element and the type of filter material. The structure of the filter element includes line gap type, sheet type, sintered type, and cylindrical type; the filter material is made of glass fiber, synthetic fiber, plant fiber, metal fiber felt and metal steel mesh; according to the filtering accuracy, the minimum particle size that can be effectively filtered out is divided into 10μm, 40μm, and 100μm.

[0003] In the related art, the fluid is filtered after passing through the filter element. However, due to the single structure of the filter element, that is, only one structure is used for filtering, the filtering effect of the filter element is poor. Summary of the invention

[0004] The main purpose of the present invention is to provide a filter unit and a precision filtering device having the same, so as to solve the problem of poor filtering effect of the filter element in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a filter unit is provided, comprising: a connecting ring; a first cylinder, the first cylinder is connected to the connecting ring, and a plurality of first holes are arranged in an array on the first cylinder; a second cylinder, the diameter of the second cylinder is smaller than that of the first cylinder, the second cylinder is arranged in the first cylinder, and a plurality of second holes are arranged in an array on the second cylinder; and a filter structure is arranged between the first cylinder and the second cylinder.

[0006] Further, each first hole body has a plurality of first corners, and the number of the first corners of each first hole body is greater than six.

[0007] Further, each second hole body has a plurality of second corners, and the number of the second corners of each second hole body is greater than the number of the first corners of the first hole body.

[0008] Furthermore, at least some of the first corners among the plurality of first corners have different angle values.

[0009] Furthermore, a plurality of floating strips are arranged on the inner wall of the first hole body.

[0010] Furthermore, the filter structure has a guide channel inside, and a filter membrane is arranged in the guide channel.

[0011] Furthermore, an inlet is provided on a side of the filter structure facing the first cylinder, an outlet is provided on a side of the filter structure facing the second cylinder, and the guide channel is connected between the inlet and the outlet.

[0012] Furthermore, a positioning block is arranged on the connecting ring, the interior of the positioning block is a hollow structure, and the filter unit further comprises a stop structure, which is arranged in the hollow structure and can extend out of the hollow structure.

[0013] Furthermore, the stop structure includes a stop block and a driving structure, the stop block has an avoidance state located in the hollow structure and a stop state extending out of the hollow structure, and the driving structure can drive the stop block to switch between the avoidance state and the stop state.

[0014] According to another aspect of the present invention, a precision filtering device is provided, comprising: a substrate, wherein a accommodating space is arranged inside the substrate; an air inlet and an air outlet, both of which are arranged on the substrate and are connected to the accommodating space; a filter unit, which is arranged in the accommodating space and located between the air inlet and the air outlet, wherein the filter unit is the above-mentioned filter unit.

[0015] By applying the technical solution of the present invention, the first cylinder is connected to the connecting ring, the second cylinder is arranged inside the first cylinder, the filtering structure is arranged between the first cylinder and the second cylinder, a plurality of first holes are arranged on the first cylinder, and a plurality of second holes are arranged on the second cylinder. Through the above arrangement, the fluid can enter the filtering structure through the first hole and flow out through the second hole. When the fluid contacts with the first hole, it can be filtered for the first time, when it contacts with the filtering structure, it can be filtered for the second time, and when it passes through the second hole, it can be filtered for the third time, that is, the filtering unit can filter three times, which can achieve a better filtering effect. Therefore, the technical solution of the present application effectively solves the problem of poor filtering effect of the filter element in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic cross-sectional view of an embodiment of a filter unit according to the present invention is shown;

[0018] Figure 2 Shows Figure 1 A partial enlarged view of the filter unit at point A;

[0019] Figure 3 Shows Figure 1 A schematic top view of a filter unit;

[0020] Figure 4 Shows Figure 1 A schematic structural diagram of a first pore body of a filtration unit;

[0021] Figure 5 Shows Figure 1 A schematic structural diagram of a second pore body of a filtration unit;

[0022] Figure 6 Shows Figure 1 A cross-sectional schematic diagram of a filtration structure of a filtration unit;

[0023] Figure 7 A schematic structural diagram of an embodiment of a precision filtering device according to the present invention is shown.

[0024] The above drawings include the following reference numerals:

[0025] 10. Connecting ring; 11. Positioning block; 20. First cylinder; 21. First hole; 211. First corner; 212. Floating strip; 30. Second cylinder; 31. Second hole; 311. Second corner; 40. Filter structure; 41. Guide channel; 42. Filter membrane; 43. Inlet; 44. Outlet; 50. Stop structure; 51. Stop block; 52. Driving structure; 61. Base; 611. Accommodating space; 62. Air inlet; 63. Air outlet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0029] like Figure 1 and Figure 3 As shown, in this embodiment, the filter unit includes: a connecting ring 10, a first cylinder 20, a second cylinder 30 and a filter structure 40. The first cylinder 20 is connected to the connecting ring 10, and a plurality of first holes 21 are arranged in an array on the first cylinder 20. The diameter of the second cylinder 30 is smaller than that of the first cylinder 20, the second cylinder 30 is arranged in the first cylinder 20, and a plurality of second holes 31 are arranged in an array on the second cylinder 30. The filter structure 40 is arranged between the first cylinder 20 and the second cylinder 30.

[0030] By applying the technical solution of this embodiment, the first cylinder 20 is connected to the connecting ring 10, the second cylinder 30 is arranged inside the first cylinder 20, the filtering structure 40 is arranged between the first cylinder 20 and the second cylinder 30, and a plurality of first holes 21 are arranged on the first cylinder 20, and a plurality of second holes 31 are arranged on the second cylinder 30. Through the above-mentioned arrangement, the fluid can enter the filtering structure 40 through the first holes 21 and flow out through the second holes 31. When the fluid contacts with the first holes 21, the first filtration can be achieved, when it contacts with the filtering structure 40, the second filtration can be achieved, and when it passes through the second holes 31, the third filtration can be achieved, that is, the filtering unit can achieve three filtrations, which can make the filtering effect better. Therefore, the technical solution of this embodiment effectively solves the problem of poor filtering effect of the filter element in the related art.

[0031] Specifically, the filter unit can accurately control the filtering level and achieve a multi-stage filtering effect through a double-layer pore design. The difference in pore size between the first pore 21 and the second pore 31 ensures effective separation of large particles and small particles, and the filter structure 40 further improves the filtering accuracy.

[0032] In the field of air purification, this design is particularly suitable for removing PM2.5 and smaller particles in the air, providing healthy and fresh air for living and working environments. In the field of water treatment and oil purification, it can effectively remove suspended matter and impurities in water and oil, improve the purity of fluids, and provide protection for industrial production and daily life.

[0033] It should be noted that, through this design, the path complexity of the fluid passing through the second cylinder 30 is increased, and the filtering performance is further improved. The filtering structure 40 is arranged between the first cylinder 20 and the second cylinder 30, and a guide channel 41 is designed inside the filter structure 40, and a filter membrane 42 is embedded in the guide channel 41. An inlet 43 is provided on one side of the filtering structure 40, and an outlet 44 is provided on the other side. The guide channel 41 is connected between the inlet 43 and the outlet 44, ensuring that the fluid can flow along the preset path, thereby improving the filtering efficiency.

[0034] The stop structure 50 includes a stop block 51 and a driving structure 52. The stop block 51 can move freely in the hollow structure through the driving structure 52 to meet the needs of different usage conditions. When the stop block 51 is in the stop state extending out of the hollow structure, it can effectively prevent large particles of impurities from directly impacting the filter membrane 42, thereby protecting the integrity of the filter membrane 42 and extending its service life.

[0035] like Figure 1 and Figure 4 As shown, in this embodiment, each first hole body 21 has a plurality of first corner portions 211, and the number of the first corner portions 211 of each first hole body 21 is greater than 6. The above arrangement can hook impurities in the fluid, thereby achieving a better filtering effect.

[0036] Specifically, by increasing the number of the first corner portions 211 of the first pores 21 , the fluid will encounter more turns and disturbances when passing through the first pores 21 , which not only increases the chances of tiny particles being captured, but also improves the durability of the filtering structure.

[0037] In industrial production environments, such as semiconductor manufacturing and precision machining, extremely high requirements are placed on the purity of the fluid. This design can meet the stringent requirements of these fields and ensure the smooth progress of the production process.

[0038] like Figure 1 , Figure 4 as well as Figure 5As shown, in this embodiment, each second hole body 31 has a plurality of second corner portions 311, and the number of the second corner portions 311 of each second hole body 31 is greater than the number of the first corner portions 211 of the first hole body 21. The arrangement of the second corner portions 311 can further improve the filtering effect, and since the number of the second corner portions 311 is greater than the number of the first corner portions 211, the filtering effect of the second hole body 31 can be better.

[0039] It should be noted that the number of second corners 311 of the second hole body 31 is greater than the number of first corners 211 of the first hole body 21, so that when the fluid passes through the second layer of filtration, smaller particles such as bacteria and viruses can be removed, which can significantly improve the safety and reliability of medical and scientific research work.

[0040] like Figure 1 , Figure 4 as well as Figure 5 As shown, in this embodiment, at least some of the first corners 211 have different angle values. The above arrangement can ensure the filtering effect. Specifically, the arrangement of the first corners 211 is random.

[0041] Specifically, by adjusting the angle value of the first corner portion 211 , a complex vortex phenomenon will be generated when the fluid passes through the hole body, which is particularly effective for removing viscous impurities.

[0042] In industrial wastewater treatment, this design can significantly improve filtration efficiency, reduce pollutant emissions and promote environmental protection; in the field of oil purification, it can effectively remove colloids and suspended matter in the oil, extend equipment life and reduce maintenance costs.

[0043] like Figure 1 , Figure 4 as well as Figure 5 As shown, in this embodiment, a plurality of floating strips 212 are arranged on the inner wall of the first hole body 21. The arrangement of the floating strips 212 can stick to impurities, thereby achieving filtration. Specifically, the material of the floating strips 212 is plant fiber.

[0044] Specifically, the arrangement of the floating strips 212 on the inner wall of the first hole body 21 can significantly increase the turbulence of the fluid, making it easier for suspended particles to be captured by the filtering structure.

[0045] In the field of water treatment, this design has a significant effect on removing suspended matter, algae and other microorganisms in water sources, providing a guarantee for safe drinking water and industrial water. In the process of seawater desalination, it can effectively remove salt crystals in seawater and improve desalination efficiency.

[0046] like Figure 1 , Figure 3 as well as Figure 6As shown, in this embodiment, the filter structure 40 has a flow guide channel 41 inside, and a filter membrane 42 is arranged in the flow guide channel 41. The fluid can flow in the flow guide channel 41, and can be filtered through the filter membrane 42. Specifically, a plurality of filter membranes 42 are arranged in the flow guide channel 41, and the intervals between two adjacent filter membranes 42 are not equal along the direction of the flow guide channel 41.

[0047] It should be noted that the design of the flow guide channel 41 in the filter structure 40 ensures that the fluid is evenly distributed on the surface of the filter membrane 42, thereby avoiding membrane damage and reduced filtering effect due to excessive local flow velocity.

[0048] In air-conditioning systems, this design can keep the air continuously purified, providing a clean and comfortable environment indoors; in the field of automobile exhaust treatment, it can effectively remove harmful particles in exhaust gas, reduce environmental pollution, and improve the environmental performance of the car.

[0049] like Figure 1 , Figure 3 as well as Figure 6 As shown, in this embodiment, the filter structure 40 is provided with an inlet 43 on the side facing the first barrel 20, and an outlet 44 on the side facing the second barrel 30, and the guide channel 41 is connected between the inlet 43 and the outlet 44. The above arrangement can achieve fluid diversion.

[0050] Specifically, the design of the inlet 43 and the outlet 44 ensures the smooth flow of the fluid in the filter unit, avoiding the decrease in filtration efficiency due to fluid blockage. In a continuous filtration industrial production line, this design can provide stable and continuous filtration capacity, meet the high efficiency requirements of the production line, and ensure product quality.

[0051] Specifically, in the present embodiment, there are a plurality of guide channels 41 , and in a direction from the inlet portion 43 to the outlet portion 44 , the widths of the plurality of guide channels 41 first decrease and then increase.

[0052] like Figure 1 and Figure 2 As shown, in this embodiment, a positioning block 11 is provided on the connecting ring 10, and the interior of the positioning block 11 is a hollow structure. The filter unit further includes a stopper structure 50, which is provided in the hollow structure and can extend out of the hollow structure. The provision of the positioning block 11 can achieve positioning, thereby making the position of the filter unit more stable. At the same time, the stopper structure 50 can prevent the filter unit from falling out, thereby ensuring the stability of the position of the filter unit.

[0053] It should be noted that the combination of the positioning block 11 on the connecting ring 10 and the stop structure 50 provides an additional protection mechanism for the filter unit. Under complex environmental conditions and diverse impurities, such as dust on construction sites and rock fragments in mines, the timely extension of the stop structure 50 can effectively prevent large particles of impurities from directly impacting the filter membrane, reduce membrane damage, extend the service life of the equipment, and ensure the normal operation of the filter unit in harsh environments.

[0054] like Figure 1 and Figure 2 As shown, in this embodiment, the stop structure 50 includes a stop block 51 and a driving structure 52. The stop block 51 has an avoidance state located in the hollow structure and a stop state extending out of the hollow structure. The driving structure 52 can drive the stop block 51 to switch between the avoidance state and the stop state. The above arrangement can achieve the fixation of the filter unit.

[0055] In this embodiment, the automatic switching function of the stop structure 50 is based on the precise control of the driving structure 52, and can quickly extend the stop block 51 when large particles of impurities are detected, and automatically retract it when the fluid purity is high, thereby reducing the resistance to the passage of the fluid.

[0056] This intelligent design has significant advantages in highly automated production environments, such as the pharmaceutical and electronics manufacturing industries. It can reduce the frequency of manual maintenance, reduce downtime, and improve production efficiency.

[0057] Specifically, in this embodiment, the driving structure 52 includes a bending rod, the first end of which extends out of the lower surface of the connecting ring 10 and forms a driving end, and the second end of the bending rod cooperates with the stop block 51. Specifically, a first guiding slope is provided on the second end of the bending rod, and a second guiding slope is provided on the stop block 51. When the bending rod moves upward, the first guiding slope and the second guiding slope can cooperate and push the stop block 51 out of the hollow structure. A reset member is provided between the stop block 51 and the hollow structure, and the reset member can ensure that the stop block 51 is in an avoidance state.

[0058] According to a second aspect of the present application, a precision filtering device is provided, such as Figure 7 As shown, the precision filtering device of this embodiment includes: a substrate 61, the interior of which is provided with a containing space 611; an air inlet 62 and an air outlet 63, both of which are provided on the substrate 61 and are connected to the containing space 611; a filter unit, which is provided in the containing space 611 and is located between the air inlet 62 and the air outlet 63, wherein the filter unit is the above-mentioned filter unit. The above-mentioned filter unit can make the filtering effect better, so the precision filtering device having the above-mentioned filter unit also has the above-mentioned advantages.

[0059] Specifically, the overall design of the precision filtration device is compact and easy to operate. It can not only effectively improve the practicality and application scope of the precision filtration device, but also adapt to various harsh environments, such as high temperature, high pressure, corrosive fluids, etc., providing reliable fluid purification solutions for industries such as industry, medical treatment, and scientific research.

[0060] In addition, the precision filtration device has good maintainability, and users can easily replace the filter membrane to ensure long-term and stable operation of the equipment.

[0061] In this embodiment, the compact design and simple operation of the precision filtration device make it a rare fluid purification tool in the fields of industry, medicine, and scientific research. Whether it is treating high-temperature and high-pressure industrial waste gas or purifying corrosive fluids such as strong acid and strong alkali solutions, the device can maintain stable working performance and provide efficient filtration services. Its good maintainability, especially the easy replacement of the filter membrane, ensures the long-term reliability of the equipment and reduces production interruptions caused by equipment failure. It is an indispensable purification equipment in modern production and scientific research activities.

[0062] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0063] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0064] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter unit, characterized in that: include: Connecting ring (10); A first cylinder (20), the first cylinder (20) being connected to the connecting ring (10), and a plurality of first holes (21) being arranged in an array on the first cylinder (20); A second cylinder (30), wherein the diameter of the second cylinder (30) is smaller than that of the first cylinder (20), the second cylinder (30) is disposed inside the first cylinder (20), and a plurality of second holes (31) are arranged in an array on the second cylinder (30); A filtering structure (40) is arranged between the first cylinder (20) and the second cylinder (30).

2. The filter unit according to claim 1, characterized in that Each of the first hole bodies (21) has a plurality of first corner portions (211), and the number of the first corner portions (211) of each of the first hole bodies (21) is greater than 6.

3. The filter unit according to claim 2, characterized in that Each of the second hole bodies (31) has a plurality of second corner portions (311), and the number of the second corner portions (311) of each of the second hole bodies (31) is greater than the number of the first corner portions (211) of the first hole body (21).

4. The filter unit according to claim 3, characterized in that At least some of the first corners (211) among the plurality of first corners (211) have different angle values.

5. The filter unit according to claim 1, characterized in that A plurality of floating strips (212) are arranged on the inner wall of the first hole body (21).

6. The filter unit according to claim 1, characterized in that The filter structure (40) has a flow guide channel (41) inside, and a filter membrane (42) is arranged inside the flow guide channel (41).

7. The filter unit according to claim 6, characterized in that The filter structure (40) is provided with an inlet portion (43) on the side facing the first cylinder (20), and the filter structure (40) is provided with an outlet portion (44) on the side facing the second cylinder (30), and the guide channel (41) is connected between the inlet portion (43) and the outlet portion (44).

8. The filter unit according to claim 1, characterized in that A positioning block (11) is arranged on the connecting ring (10), the interior of the positioning block (11) is a hollow structure, and the filter unit further comprises a stop structure (50), the stop structure (50) is arranged in the hollow structure and can extend out of the hollow structure.

9. The filter unit according to claim 8, characterized in that The stop structure (50) comprises a stop block (51) and a drive structure (52); the stop block (51) has an avoidance state located within the hollow structure and a stop state extending out of the hollow structure; and the drive structure (52) is capable of driving the stop block (51) to switch between the avoidance state and the stop state.

10. A precision filtering device, characterized in that: The precision filtering device comprises: A base (61), wherein a receiving space (611) is provided inside the base (61); The air inlet (62) and the air outlet (63) are both arranged on the base (61) and are both connected to the accommodating space (611); A filter unit is arranged in the accommodating space (611) and located between the air inlet (62) and the air outlet (63), wherein the filter unit is the filter unit according to any one of claims 1 to 9.

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