An adjustable cleanroom vent assembly

Abstract

The utility model relates to an adjustable clean room air-permeable assembly. The upper portion of the lubricating primary filter bucket is provided with an air outlet on one side, the outer end of the air outlet pipe is butted against the filter core, the bottom of the lubricating primary filter bucket is coaxially fixed with an outer sleeve pipe, a plurality of outer air outlet holes are uniformly distributed on the outer sleeve pipe, and the outer air outlet holes are located below the liquid level of the lubricant; the upper portion of the rotating inner pipe is rotatably assembled on the top of the lubricating primary filter bucket through a bearing; the lower end of the rotating inner pipe is coaxially sleeved in the outer sleeve pipe, and the outer diameter of the rotating inner pipe is consistent with the inner diameter of the outer sleeve pipe; a plurality of inner air outlet holes are arranged on the rotating inner pipe, each inner air outlet hole is located below the liquid level of the lubricant, the inner air outlet holes are correspondingly arranged with the outer air outlet holes, the communication cross section of the inner air outlet holes and the outer air outlet holes can be changed through the rotation of the rotating inner pipe to adjust the air volume, one end of the rotating inner pipe extending out of the lubricating primary filter bucket is connected with the air inlet source through a rotary joint, and a driven gear ring is mounted on the outer peripheral surface of the end. The utility model has the advantages of reducing wear through the lubricant and filtering impurities in front of the filter core through the lubricant.

Description

Technical Field

[0001] This utility model relates to an adjustable cleanroom ventilation component. Background Technology

[0002] A cleanroom, also known as a dust-free workshop, is a well-sealed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise can be effectively controlled as needed. Cleanrooms are widely used in pharmaceuticals and bioengineering, precision machinery, medical and health care, high-end food, and electronic materials. Although cleanrooms are well-sealed spaces, to prevent changes in air composition during production and operation that could lead to increased levels of harmful gases, regular or continuous ventilation using ventilation systems is necessary to maintain cleanliness.

[0003] Traditional cleanroom ventilation components are positioned in fixed locations, and the size of their vents is also relatively fixed. This results in an inability to adjust the airflow, and the exhaust volume of the fan is limited by the size of the vents. While some commercially available systems use flap-type mechanisms to control airflow, frequent adjustments can easily lead to mechanical wear and gaps, resulting in inaccurate airflow control. Furthermore, after prolonged use, the air filters become clogged, requiring cleaning or replacement. Since these filters filter outdoor air, outdoor dust, pollutants, and small insects can quickly clog them, necessitating frequent replacement or cleaning. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable cleanroom ventilation component, which can replace the flap structure with a sleeve structure with adjustment holes, thereby improving adjustment accuracy, reducing mechanical wear, and achieving even lower mechanical wear by being immersed in lubricant. Furthermore, the lubricant can preliminarily absorb and filter the airflow before it enters the cleanroom, thereby reducing the probability of filter element clogging, increasing the service life of the filter element, and reducing the manual maintenance cycle.

[0005] The technical solution of this utility model is as follows: The adjustable cleanroom ventilation component includes: Filter cartridges are used to install on the side of the cleanroom air inlet that is closest to the interior. The lubricating primary filter has a vertically oriented axis and an air outlet on one side of its upper part. An air outlet pipe is connected to the air outlet, and the axis of the air outlet pipe is horizontally oriented. The outer end of the air outlet pipe is connected to the filter element. The lubricating primary filter contains lubricant. An outer sleeve is coaxially fixed to the bottom of the lubricating primary filter. Multiple air outlet holes are evenly distributed on the outer sleeve, and the air outlet holes are located below the level of the lubricant. The rotating inner tube is mounted on the top of the lubricating primary filter barrel via a bearing at its upper part; its lower end is coaxially sleeved inside the outer outer tube, and its outer diameter is the same as the inner diameter of the outer outer tube; the rotating inner tube is provided with multiple internal air outlets, each of which is located below the level of the lubricant. The internal air outlets and external air outlets are set in correspondence. By rotating the inner tube, the connection section between the internal air outlets and the external air outlets can be changed to adjust the air volume. One end of the rotating inner tube extending out of the lubricating primary filter barrel is connected to the air inlet source through a rotary joint, and a driven gear ring is installed on the outer circumferential surface of this end. The regulating power mechanism includes a drive motor and a driving gear driven by the drive motor, which meshes with a driven gear ring for transmission.

[0006] The beneficial effects of this technical solution are as follows: When the adjustable cleanroom ventilation component is in use, the air inlet first introduces external air into the rotating inner tube. When the inner air outlet of the rotating inner tube connects with the corresponding outer air outlet, the airflow enters the lubricant from the outer air outlet. Dust and debris in the airflow enter the lubricant and are carried away with the circulation of the lubricant, preventing dust and debris from entering the filter element with the airflow, thereby extending the service life of the filter element as much as possible. Since the rotating joint of the rotating inner tube and the outer tube is located in the lubricant, that is, it is immersed in the lubricant, the friction between the two relative to each other is significantly reduced, avoiding the widening of the gap due to long-term wear, which would affect the precise control of the airflow. Moreover, the mating surface between the outer tube and the rotating inner tube is a vertically set rotating surface, and there is no pressure between the two surfaces, so it is less likely to generate friction, which also prevents wear when the two rotate together. Compared to existing technologies, this application replaces the flap-type structure with a sleeve-type structure with adjustment holes, which improves adjustment accuracy and reduces mechanical wear. Furthermore, it can achieve even lower mechanical wear by being immersed in lubricant, and the lubricant can preliminarily absorb and filter the airflow before it enters the cleanroom, thereby reducing the probability of filter element clogging, increasing the service life of the filter element, and reducing the manual maintenance cycle.

[0007] Based on the above scheme, the following improvement is made: the internal air outlet is an elongated hole extending along its rotation direction. The elongated hole allows for a wider adjustment range.

[0008] Based on the above solution, further improvements are made as follows: the lubricating primary filter tank is equipped with an overflow port at the set liquid level, which is connected to the lubricant storage container via an overflow pipe. The lubricating primary filter tank is also equipped with a liquid inlet, which is connected to the lubricant supply source via an inlet pipe. This configuration ensures that the liquid level in the tank remains constant and facilitates timely filtration to remove dust and impurities left in the primary filter from the lubricant.

[0009] Based on the above solution, the following improvements are made: a filter screen is installed on the liquid inlet pipe, and the filter screen is detachably connected to the liquid inlet pipe.

[0010] Based on the above solution, the following improvements are made: the lubricating pre-filter and the adjusting power mechanism are installed in the wall of the clean room, and a corresponding installation groove is provided in the wall, with an opening door at the opening of the installation groove.

[0011] Based on the above scheme, further improvements are made as follows: multiple sets of internal air outlets are set along the axial direction of the rotating inner tube, and each set of internal air outlets is located on the same circle with the axis of the rotating inner tube as the center, and the internal air outlets in each set are evenly distributed along the circumference.

[0012] Based on the above scheme, the following improvements are made: multiple sets of vent holes are set along the axial direction of the outer tube. Each set of vent holes is located on the same circle with the axis of the outer tube as the center. Each set of vent holes is evenly distributed along the circumference. The vent holes in each set and the corresponding set of vent holes are at the same height. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of a specific embodiment of an adjustable cleanroom ventilation component according to the present invention; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 for Figure 1 A magnified view of a section at point B in the middle; In the diagram: 1-Cleanroom wall, 11-Air inlet, 12-Mounting slot, 13-Opening door, 2-Filter element, 3-Lubricating pre-filter, 31-Air outlet pipe, 32-Outer sleeve, 321-Outer vent, 33-Overflow pipe, 34-Liquid inlet, 4-Lubricant level, 5-Rotating inner tube, 51-Inner vent, 52-Rotating joint, 53-Driven gear ring, 6-Bearing, 7-Adjusting power mechanism, 71-Drive motor, 72-Driving gear. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0016] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0017] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0018] A specific embodiment of the adjustable cleanroom ventilation component of this utility model is as follows: Figure 1-3 As shown, the adjustable cleanroom ventilation assembly includes a filter element 2, a lubricated pre-filter 3, a rotating inner tube 5, and an adjustment power mechanism 7.

[0019] Filter element 2 is used to be installed on the side of the cleanroom air inlet 11 that is closer to the room.

[0020] The lubricating pre-filter tank 3 has a vertically oriented axis and an air outlet on one side of its upper part. An air outlet pipe 31 is connected to the air outlet, and its axis is horizontally oriented. The outer end of the air outlet pipe 31 is connected to the filter element 2. The lubricating pre-filter tank 3 contains lubricant. An outer sleeve 32 is coaxially fixed to the bottom of the lubricating pre-filter tank 3. Multiple air outlet holes 321 are evenly distributed on the outer sleeve 32, and these holes are located below the lubricant level. The lubricating pre-filter tank 3 and the adjusting power mechanism 7 are installed in the wall of a clean room. A corresponding installation groove 12 is provided in the wall, and an opening door 13 is provided at the opening of the installation groove 12. The lubricating pre-filter tank 3 has an overflow port at the set liquid level, which is connected to the lubricant storage container via an overflow pipe 33. The lubricating pre-filter tank 3 also has a liquid inlet 34, which is connected to the lubricant supply source via an inlet pipe. This configuration ensures a constant liquid level inside the tank and facilitates timely filtration and removal of dust and impurities left by the pre-filter in the lubricant. A filter screen is installed on the inlet pipe, and the filter screen is detachably connected to the inlet pipe. Multiple sets of internal vent holes 51 are arranged along the axis of the rotating inner tube 5. Each set of internal vent holes 51 is located on the same circle centered on the axis of the rotating inner tube 5, and the internal vent holes 51 are evenly distributed circumferentially. Multiple sets of external vent holes 321 are arranged along the axis of the outer tube 32. Each set of external vent holes 321 is located on the same circle centered on the axis of the outer tube 32, and the external vent holes 321 are evenly distributed circumferentially. Each set of internal vent holes 51 and its corresponding set of external vent holes 321 are at the same height.

[0021] The upper part of the rotating inner tube 5 is rotatably mounted on the top of the lubrication pre-filter barrel 3 via a bearing 6; its lower end is coaxially sleeved inside the outer outer tube 32, and its outer diameter is consistent with the inner diameter of the outer outer tube 32; the rotating inner tube 5 is provided with multiple inner air outlets 51, each of which is located below the lubricant level. The inner air outlets 51 are correspondingly arranged with the outer air outlets 321. By rotating the rotating inner tube 5, the communication section between the inner air outlets 51 and the outer air outlets 321 can be changed, thereby adjusting the air volume. One end of the rotating inner tube 5 extending from the lubrication pre-filter barrel 3 is connected to the air inlet source via a rotary joint 52, and a driven gear ring 53 is installed on the outer circumferential surface of this end; the inner air outlet 51 is an elongated hole extending along its rotation direction. The elongated hole allows for a wider adjustment range.

[0022] The regulating power mechanism 7 includes a drive motor 71 and a drive gear 72 driven by the drive motor 71. The drive gear 72 meshes with the driven gear ring 53 for transmission.

[0023] When the adjustable cleanroom ventilation component is in use, the air inlet first introduces outside air into the rotating inner tube 5. When the inner air outlet 51 of the rotating inner tube 5 is connected to the corresponding outer air outlet 321, the airflow enters the lubricant from the outer air outlet 321. Dust and debris in the airflow enter the lubricant and are carried away with the circulation of the lubricant, preventing dust and debris from entering the filter element 2 with the airflow, thereby extending the service life of the filter element 2 as much as possible. Since the rotating joint of the rotating inner tube 5 and the outer tube 32 is located in the lubricant, that is, it is immersed in the lubricant, the friction between the two relative to each other is significantly reduced, avoiding the widening of the gap due to long-term wear, which would affect the precise control of the airflow. Moreover, the mating surface between the outer tube 32 and the rotating inner tube 5 is a vertically set rotating surface, and there is no pressure between the two surfaces, so it is less likely to generate friction, which also prevents wear when the two rotate together. Compared with the prior art, this application replaces the flap structure with a sleeve structure with adjustment holes, which improves the adjustment accuracy and reduces mechanical wear. Furthermore, it can achieve even lower mechanical wear by being immersed in lubricant, and the airflow before entering the clean room is initially absorbed and filtered by the lubricant, thereby reducing the probability of filter element 2 clogging, increasing the service life of filter element 2, and reducing the manual maintenance cycle.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. An adjustable cleanroom ventilation component, comprising: Filter cartridges are used to install on the side of the cleanroom air inlet that is closest to the interior. Its characteristic is that it further includes: The lubricating primary filter has a vertically oriented axis and an air outlet on one side of its upper part. An air outlet pipe is connected to the air outlet, and the axis of the air outlet pipe is horizontally oriented. The outer end of the air outlet pipe is connected to the filter element. The lubricating primary filter contains lubricant. An outer sleeve is coaxially fixed to the bottom of the lubricating primary filter. Multiple air outlet holes are evenly distributed on the outer sleeve, and the air outlet holes are located below the level of the lubricant. The rotating inner tube is mounted on the top of the lubricating primary filter barrel via a bearing at its upper part; its lower end is coaxially sleeved inside the outer outer tube, and its outer diameter is the same as the inner diameter of the outer outer tube; the rotating inner tube is provided with multiple internal air outlets, each of which is located below the level of the lubricant. The internal air outlets and external air outlets are set in correspondence. By rotating the inner tube, the connection section between the internal air outlets and the external air outlets can be changed to adjust the air volume. One end of the rotating inner tube extending out of the lubricating primary filter barrel is connected to the air inlet source through a rotary joint, and a driven gear ring is installed on the outer circumferential surface of this end. The regulating power mechanism includes a drive motor and a driving gear driven by the drive motor, which meshes with a driven gear ring for transmission.

2. The adjustable cleanroom ventilation component according to claim 1, characterized in that, The internal vent is an elongated hole that extends along its rotation direction.

3. The adjustable cleanroom ventilation component according to claim 1, characterized in that, The lubricating primary filter tank is equipped with an overflow port at the set liquid level. The overflow port is connected to the lubricant storage container through an overflow pipe. The lubricating primary filter tank is equipped with a liquid inlet, which is connected to the lubricant supply source through a liquid inlet pipe.

4. An adjustable cleanroom ventilation component according to claim 3, characterized in that, A filter screen is installed on the inlet pipe, and the filter screen is detachably connected to the inlet pipe.

5. An adjustable cleanroom ventilation component according to claim 1, characterized in that, The lubricating pre-filter and the adjusting power mechanism are installed in the wall of the clean room. The wall has a corresponding mounting groove, and the opening of the mounting groove is equipped with an opening and closing door.

6. An adjustable cleanroom ventilation component according to claim 1, characterized in that, Multiple sets of internal vents are arranged along the axis of the rotating inner tube. Each set of internal vents is located on the same circle with the axis of the rotating inner tube as the center, and the internal vents in each set are evenly distributed along the circumference.

7. An adjustable cleanroom ventilation component according to claim 6, characterized in that, Multiple sets of vents are set along the axial direction of the outer tube. Each set of vents is located on the same circle with the axis of the outer tube as the center. Each set of vents is evenly distributed along the circumference, and the vents in each set and the corresponding set of vents are at the same height.

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