Air supply filtering device of dust-free workshop

Abstract

The air supply filtering device of the dust-free workshop comprises a box body, an air inlet pipe is arranged on the left side of the box body, a fan is arranged on the left side of the air inlet pipe, a mounting shell is arranged on the outer surface of the air inlet pipe, and a processing mechanism is arranged in the mounting shell; the treatment mechanism comprises a motor, the motor is arranged on the right side of the mounting shell, a rotating rod is fixedly mounted at the position of an output shaft of the motor, a rotating disc is fixedly mounted on the outer surface of the rotating rod, two mounting cavities are formed in the rotating disc, and filter screens are movably mounted in the two mounting cavities. According to the air supply filtering device of the dust-free workshop, the treatment mechanism is arranged, air entering the air inlet pipe is preliminarily filtered through the filter screen, the filter screen can effectively intercept large-particle impurities in the air and prevent the large-particle impurities from entering the box body to make contact with the spraying device, and the situation that a spraying head of the spraying device is blocked by the large-particle impurities is fundamentally prevented; and the normal operation of the spraying device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of cleanroom air supply technology, specifically to a cleanroom air supply filtration device. Background Technology

[0002] Air filtration systems are indispensable key equipment in cleanrooms. Their main function is to filter out airborne particles, bacteria, and other contaminants to ensure the cleanliness of the air within the cleanroom, thereby improving product quality and production efficiency. With the continuous advancement of industrial technology, especially in industries with extremely high requirements for production environments such as electronics, pharmaceuticals, and food, even more stringent requirements have been placed on the air quality of cleanrooms. Traditional air filtration systems typically employ a single filtration method, such as direct water mist adsorption or high-efficiency filters for dust removal. However, these methods have certain limitations in practical applications.

[0003] For example, Chinese Patent Publication No. CN216171100U discloses an air supply filtration device for cleanrooms. This device adsorbs dust through water mist within a filter box. While it can effectively remove impurities from the air, in actual operation, larger airborne particles can easily enter the filter box directly, causing clogging of the spray nozzles and increasing the frequency of equipment maintenance and downtime. Furthermore, the presence of larger particles also increases the filtration burden on the spray device, reducing its dust removal efficiency and consequently affecting the air quality of the cleanroom.

[0004] Therefore, existing air supply filtration devices are significantly inadequate in dealing with larger particulate impurities. There is an urgent need for a device that can perform preliminary filtration of air before it enters the filter box, in order to reduce the damage of larger particulate impurities to the spray device and improve overall filtration efficiency. Based on this, this invention proposes a novel cleanroom air supply filtration device, aiming to effectively intercept larger particulate impurities through multiple filtration mechanisms, ensuring the normal operation of the spray device while improving the air quality in the cleanroom. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air supply and filtration device for a cleanroom, comprising a housing, an air inlet pipe provided on the left side of the housing, a fan provided on the left side of the air inlet pipe, an installation shell provided on the outer surface of the air inlet pipe, and a processing mechanism provided inside the installation shell;

[0006] The processing mechanism includes a motor. The motor is located on the right side of the mounting housing. A rotating rod is fixedly installed at the output shaft of the motor. A turntable is fixedly installed on the outer surface of the rotating rod. The turntable has two mounting cavities inside, and a filter screen is movably installed inside each of the two mounting cavities. The turntable also has two receiving cavities inside, and a rotating ring is rotatably installed inside each of the two receiving cavities. Each of the two rotating rings has three arc-shaped grooves on its outer surface. A sliding rod is slidably installed inside each of the three arc-shaped grooves. A positioning rod is fixedly installed on the outer surface of each of the three sliding rods. The turntable has two openings on one side. A pull rod fixedly connected to the turntable is slidably installed inside each of the two openings. A spring is fixedly installed between the pull rod and the inner wall of the opening.

[0007] Furthermore, both mounting cavities are adapted to the filter screens, and the outer surfaces of the two filter screens are provided with three positioning holes adapted to the positioning rods.

[0008] Furthermore, three inserts are fixedly installed on the outer surfaces of the two filters, and three slots that are compatible with the inserts are provided on the inner walls of the two mounting cavities.

[0009] Furthermore, each of the two turntables has three sliding openings on its inner side that are adapted to the positioning rod.

[0010] Furthermore, one end of the rotating rod is rotatably connected to the left inner wall of the mounting housing, a sealing door is provided on the left side of the mounting housing, the turntable is rotatably installed between the air inlet pipe and the mounting housing, and the rotating rod is located at the center of the turntable.

[0011] Furthermore, the top of the box is equipped with an exhaust pipe, the inside of the box is equipped with a water collection tray, and the bottom of the box is equipped with a drain valve.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The air supply filtration device in this cleanroom uses a filter screen to pre-filter the air entering the air inlet duct through a processing mechanism. The filter screen can effectively intercept larger particulate impurities in the air, preventing them from entering the housing and contacting the spray device. This fundamentally prevents larger particulate impurities from clogging the spray device nozzles, ensuring the normal operation of the spray device, reducing equipment maintenance and downtime caused by nozzle clogging, and improving the operational stability and reliability of the entire air supply filtration device.

[0014] 2. The air supply and filtration device in this cleanroom uses a motor to drive a rotating rod and disc to switch filters. On the one hand, the filters can be cleaned or replaced without stopping the device, ensuring continuous air filtration. On the other hand, because the filters block a large number of larger particles, the impurity content in the air entering the chamber for water mist adsorption and dust removal is significantly reduced, greatly reducing the filtration burden on the spray device. This not only extends the service life of the spray device but also improves its dust removal efficiency for remaining smaller particles, thus ensuring a continuous supply of clean air to the cleanroom, thereby improving product quality and production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the turntable and filter screen of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the filter screen of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Housing; 101. Exhaust duct; 102. Water collection tray; 2. Inlet duct; 3. Fan; 4. Mounting shell; 401. Sealing door; 5. Processing mechanism; 501. Motor; 502. Rotating rod; 503. Turntable; 504. Mounting cavity; 505. Filter screen; 506. Receiving cavity; 507. Rotating ring; 508. Arc groove; 509. Slide rod; 510. Positioning rod; 511. Positioning hole; 512. Insert strip; 513. Slot; 514. Opening; 515. Pull rod; 516. Spring. Detailed Implementation

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

[0021] Please see Figure 1-4 The air supply and filtration device for a cleanroom in this embodiment includes a housing 1, an air inlet pipe 2 is provided on the left side of the housing 1, a fan 3 is provided on the left side of the air inlet pipe 2, an installation shell 4 is provided on the outer surface of the air inlet pipe 2, and a processing mechanism 5 is provided inside the installation shell 4.

[0022] The processing mechanism 5 includes a motor 501. The motor 501 is located on the right side of the mounting housing 4. A rotating rod 502 is fixedly installed at the output shaft of the motor 501. A turntable 503 is fixedly installed on the outer surface of the rotating rod 502. The turntable 503 has two mounting cavities 504 inside. A filter screen 505 is movably installed inside each of the two mounting cavities 504. The turntable 503 has two receiving cavities 506 inside. A rotating ring 507 is rotatably installed inside each of the two receiving cavities 506. Three arc-shaped grooves 508 are provided on the outer surface of each of the two rotating rings 507. A sliding rod 509 is slidably installed inside each of the three arc-shaped grooves 508. A positioning rod 510 is fixedly installed on the outer surface of each of the three sliding rods 509. Two openings 514 are provided on one side of the turntable 503. A pull rod 515 fixedly connected to the turntable 503 is slidably installed inside each of the two openings 514. A spring 516 is fixedly installed between the pull rod 515 and the inner wall of the opening 514.

[0023] The cleanroom air supply and filtration device of this utility model mainly consists of a housing 1, an air inlet pipe 2, a fan 3, a mounting shell 4, and a processing mechanism 5. The air inlet pipe 2 is used to introduce external air into the device, the fan 3 provides power for air flow, so that the air can flow smoothly in the device, the processing mechanism 5 pre-treats the air entering the air inlet pipe 2, and the clean air after filtration and treatment is transported to the cleanroom through the exhaust pipe 101. The water collection tray 102 is connected to a water source through a pipe to spray water onto the housing 1 for further treatment of dust, and the discharge valve facilitates the discharge of the treated wastewater.

[0024] The rotating rod 502 is located at the center of the turntable 503. The turntable 503 has two mounting cavities 504 and two receiving cavities 506. The mounting cavities 504 are used to install the filter screen 505. The function of the filter screen 505 is to perform preliminary filtration on the air entering the air inlet duct 2, blocking larger particulate impurities in the air and preventing larger dust particles in the air from directly entering the housing 1. The receiving cavities 506 are used to install structures such as the rotating ring 507. By setting up the motor 501, the rotating rod 502 and the turntable 503, when the motor 501 is started, it can drive the turntable 503 to rotate, so that the filter screen 505 can switch to different positions. When the filter screen 505 located in the air inlet duct 2 needs to be cleaned after a long period of use, the spare filter screen 505 located in the mounting housing 4 rotates to the air inlet duct 2, realizing continuous filtration of air and cleaning of the filter screen 505.

[0025] The outer surface of the filter screen 505 has three positioning holes 511 that are compatible with the positioning rod 510. These holes are used to position and fix the filter screen 505 in conjunction with the positioning rod 510. Three insert strips 512 are also fixedly installed on the outer surface of the filter screen 505. The inner wall of the mounting cavity 504 has three slots 513 that are compatible with the insert strips 512. Inserting the insert strips 512 into the slots 513 helps to position the filter screen 505 in the mounting cavity 504, reducing installation time. When the rotating ring 507 rotates, the sliding rod 509 slides in the arc groove 508, thereby driving the positioning rod 510 to move outward or inward through the sliding opening. The positioning rod 510 can cooperate with the positioning holes 511 on the filter screen 505 to fix and loosen the filter screen 505. By pulling the pull rod 515, the rotating ring 507 can be rotated, thereby enabling the replacement or cleaning of the filter screen 505.

[0026] During implementation, the operation is as follows: The fan 3 is started, drawing external air into the device through the air inlet pipe 2. At this time, one of the filters 505 on the turntable 503 is positioned in the airflow channel of the air inlet pipe 2, performing preliminary filtration of the incoming air. Larger particles of impurities in the air are intercepted by the filter 505, while smaller particles of impurities and air continue to enter the housing 1 for further processing. After the filter 505 has been used for a period of time, a lot of impurities will accumulate on its surface, affecting the filtration effect. At this time, the sealing door 401 is opened, and the pull rod 515 is pulled. The pull rod 515 drives the rotating ring 507 to rotate, and the slide rod 509 slides in the arc groove 508, causing the positioning rod 510 to exit from the positioning hole 511 of the filter 505. The filter 505 is then loosened, and a clean filter 505 is installed in the mounting cavity 504. The pull rod 515 is then released, and the spring 516 expands, allowing the three positioning rods 510 to insert into the three positioning holes 511, thus completing the fixation of the filter 505.

[0027] In summary, the air supply filtration device in this cleanroom, through the setting of the processing mechanism 5, uses the filter screen 505 to perform preliminary filtration on the air entering the air inlet duct 2. The filter screen 505 can effectively intercept larger particulate impurities in the air, preventing them from entering the housing 1 and contacting the spray device. This fundamentally prevents larger particulate impurities from clogging the spray device nozzles, ensuring the normal operation of the spray device, reducing equipment maintenance and downtime caused by nozzle clogging, and improving the operational stability and reliability of the entire air supply filtration device.

[0028] Furthermore, the motor 501 drives the rotating rod 502 and the turntable 503 to rotate, thereby switching the filter screen 505. On the one hand, the filter screen 505 can be cleaned or replaced without stopping the operation of the device, ensuring the continuity of air filtration. On the other hand, since the filter screen 505 blocks a large number of larger particulate impurities, the impurity content in the air entering the chamber 1 for water mist adsorption and dust removal is greatly reduced, which greatly reduces the filtration burden of the spray device. This not only improves the service life of the spray device, but also enhances its dust removal efficiency for the remaining smaller particulate impurities, thereby ensuring that the cleanroom can continuously obtain a clean air supply, and thus improve product quality and production efficiency.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air supply and filtration device for a cleanroom, comprising a housing (1), characterized in that: An air inlet pipe (2) is provided on the left side of the housing (1), and a fan (3) is provided on the left side of the air inlet pipe (2). A mounting shell (4) is provided on the outer surface of the air inlet pipe (2), and a processing mechanism (5) is provided inside the mounting shell (4). The processing mechanism (5) includes a motor (501). A motor (501) is provided on the right side of the mounting shell (4). A rotating rod (502) is fixedly installed at the output shaft of the motor (501). A turntable (503) is fixedly installed on the outer surface of the rotating rod (502). Two mounting cavities (504) are opened inside the turntable (503). A filter screen (505) is movably installed inside each of the two mounting cavities (504). The turntable (503) has two accommodating cavities (506) inside. A rotating ring (507) is rotatably installed inside each of the two accommodating cavities (506). Three arc-shaped grooves (508) are opened on the outer surface of each of the two rotating rings (507). A sliding rod (509) is slidably installed inside each of the three arc-shaped grooves (508). A positioning rod (510) is fixedly installed on the outer surface of each of the three sliding rods (509). Two openings (514) are opened on one side of the turntable (503). A pull rod (515) fixedly connected to the turntable (503) is slidably installed inside each of the two openings (514). A spring (516) is fixedly installed between the pull rod (515) and the inner wall of the opening (514).

2. The air supply and filtration device for a cleanroom according to claim 1, characterized in that: Both mounting cavities (504) are adapted to the filter screen (505), and the outer surface of the two filter screens (505) is provided with three positioning holes (511) adapted to the positioning rod (510).

3. The air supply and filtration device for a cleanroom according to claim 1, characterized in that: Three inserts (512) are fixedly installed on the outer surface of the two filters (505), and three slots (513) that are adapted to the inserts (512) are opened on the inner wall of the two mounting cavities (504).

4. The air supply and filtration device for a cleanroom according to claim 1, characterized in that: The inner sides of both turntables (503) are provided with three sliding openings that are adapted to the positioning rod (510).

5. The air supply and filtration device for a cleanroom according to claim 1, characterized in that: One end of the rotating rod (502) is rotatably connected to the left inner wall of the mounting shell (4). A sealing door (401) is provided on the left side of the mounting shell (4). The turntable (503) is rotatably installed between the air inlet pipe (2) and the mounting shell (4), and the rotating rod (502) is located at the center of the turntable (503).

6. The air supply and filtration device for a cleanroom according to claim 1, characterized in that: The top of the box (1) is provided with an exhaust pipe (101), the inside of the box (1) is provided with a water collection tray (102), and the bottom of the box (1) is provided with a drain valve.

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