An indoor floating particle purification device for pharmaceutical production

Abstract

The invention relates to the technical field of air purification equipment, in particular to an indoor floating particle purification device for medicine production, which improves dust collection efficiency and reduces the possibility of dust and other impurity particles escaping; the device comprises: an air guide module, comprising an air intake box and an air outlet box arranged at a relative interval, channels for gas to pass through are provided on the facing surfaces of the air intake box and the air outlet box, an air pump is installed on the outer side of the air intake box, and an air suction end of the air pump is connected with the air intake box; a purification module, comprising a purification barrel, a corona electrode and a dust collecting electrode arranged at an interval up and down are installed inside the purification barrel, an annular ultrasonic generator is installed between the corona electrode and the dust collecting electrode, an adsorption cylinder is sleeved on the outer side of the dust collecting electrode, the top of the purification barrel is connected with the air suction end of the air pump through a first conduit, and the bottom of the purification barrel is connected with the air outlet box through a second conduit.

Description

Technical Field

[0001] The invention relates to the technical field of air purification equipment, and in particular to an indoor floating particle purification device for medicine production. Background Art

[0002] The air cleanliness in the pharmaceutical production environment has a direct impact on the quality of the drug. During the pharmaceutical production process, floating particles such as microorganisms and dust in the air may contaminate the drug, affect its purity and safety, and may even cause the drug to become ineffective or produce harmful side effects. Therefore, controlling the air cleanliness in the production environment is one of the important measures to ensure the quality of the drug.

[0003] Electrostatic purification is a commonly used air purification method. Electrostatic purification devices generally include a corona electrode and a dust collecting electrode. The corona electrode ionizes the air under the action of a high-voltage DC power supply to generate a large number of free electrons, which collide with floating particles flowing through the corona electrode and the dust collecting electrode, and make them negatively charged, wherein the particles with negative charges are deposited on the dust collecting electrode under the action of the electric field force. However, during the working process of this device, the movement direction of a part of the charged dust and other foreign particles will deviate from the collecting electrode or leak from the collecting electrode, which will cause the efficiency of the collecting electrode to adsorb dust and other foreign particles to decrease, that is, the cleaning efficiency of the purification device is reduced. Therefore, it is urgent to design a purification device with high dust collecting efficiency of the collecting electrode. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an indoor floating particle purification device for pharmaceutical production, which improves dust collection efficiency and reduces the possibility of dust and other foreign particles escaping.

[0005] The present invention provides an indoor floating particle purification device for pharmaceutical production, comprising:

[0006] The air guide module comprises an air intake box and an air outlet box which are arranged at a relative interval. The air intake box and the air outlet box are provided with passages for gas to pass through on the facing surfaces thereof. An air pump is installed on the outer side of the air intake box, and the air extraction end of the air pump is connected to the air intake box.

[0007] The purification module comprises a purification barrel, wherein a corona electrode and a dust collecting electrode are installed inside the purification barrel with upper and lower intervals, an annular ultrasonic generator is installed between the corona electrode and the dust collecting electrode, an adsorption cylinder is sleeved on the outer side of the dust collecting electrode, the top of the purification barrel is connected with the suction end of the air pump through a first conduit, and the bottom of the purification barrel is connected with the air outlet box through a second conduit.

[0008] Furthermore, a cover is installed on the top of the purification barrel, an opening connected to the purification barrel is provided at the bottom of the cover, the corona electrode is installed inside the cover, a first annular groove is installed on the outside of the cover, and a plurality of air inlet holes connecting the cover and the first annular groove are provided on the side wall of the cover, the plurality of air inlet holes are evenly distributed along the circumference of the cover, and one end of the first conduit is connected to the first annular groove.

[0009] Furthermore, a plurality of longitudinally distributed piezoelectric crystals are arranged in the ultrasonic generator, and the thickness of the plurality of piezoelectric crystals increases sequentially from top to bottom.

[0010] Furthermore, the outer wall of the ultrasonic generator is rotatably connected to the inner wall of the purification barrel, and a first control structure for driving the ultrasonic generator to rotate is installed on the purification barrel.

[0011] Furthermore, a pressure valve is arranged on the second conduit.

[0012] Furthermore, a plurality of evenly distributed air holes are provided on the side wall of the air intake box facing the air outlet box, a baffle is rotatably connected inside the air intake box, the baffle corresponds to the air holes, a water inlet trough is installed on the air intake box, a plurality of nozzles are connected to the water inlet trough, and the plurality of nozzles pass through the air intake box toward the internal area;

[0013] A first water inlet pipe is connected to the water inlet tank, and a first water outlet pipe is connected to the bottom of the air suction box.

[0014] Furthermore, the air outlet box has an opening on one side facing the air intake box, a corresponding cover plate is movably installed at the opening, and a telescopic member is installed inside the air outlet box to drive the cover plate to move closer to or away from the air outlet box.

[0015] Furthermore, a cleaning module for cleaning the adsorption cylinder is also included, and the cleaning module includes:

[0016] The second annular groove is rotatably connected to the inner wall of the purification barrel, an air guide cavity and a water guide cavity are arranged in the second annular groove, the adsorption cylinder is horizontally arranged and its two ends are rotatably connected to the second annular groove, and an air outlet hole connecting the air guide cavity and the adsorption cylinder is opened on the second annular groove;

[0017] The water spray pipe is horizontally installed inside the adsorption cylinder and its two ends are connected with the water guide cavity. The water spray pipe is provided with a plurality of spray holes distributed along its length direction, and the spray holes face the adsorption cylinder;

[0018] The second water inlet pipe is installed outside the purification barrel and communicated with the water guide cavity;

[0019] A second water outlet pipe is installed at the bottom of the purification barrel and is connected thereto;

[0020] The second control structure is used to control the rotation of the adsorption cylinder.

[0021] Furthermore, the second control structure includes:

[0022] The second toothed plate is coaxially fixedly connected to the second annular groove; the second driving wheel is meshed with the second toothed plate and driven to rotate by the second driving motor;

[0023] A transmission wheel, which is sleeved on the outside of the adsorption cylinder and fixedly connected thereto;

[0024] The third tooth plate is arranged above the second annular groove and is fixedly connected to the inner wall of the purification barrel, and the transmission wheel is meshed with the third tooth plate.

[0025] Furthermore, the second water outlet pipe includes a drainage section and an overflow section, and the drainage section is directly connected to the purification barrel for transitioning water under different pressure conditions.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. By installing the air intake box and the air outlet box on opposite sides of the room, forming an air flow path from one side to the other, it helps to create a more uniform airflow pattern, ensuring that most of the air in the room can be processed by the purification device;

[0028] 2. As the air flows from top to bottom in the purification barrel, the high-voltage electric field between the corona electrode and the dust collecting electrode charges the particles in the air. The ultrasonic generator uses the vibration energy and acoustic effect of the ultrasonic wave to effectively condense the particles and concentrate them in the middle of the purification barrel. As the gas flows, they are finally captured by the adsorption cylinder, which improves the collection efficiency of the impurity particles and the cleaning efficiency of the purification device.

[0029] 3. Through the rotation of the adsorption cylinder and the design of water spraying from the water spray pipe, every part of the surface of the adsorption cylinder will pass through the spray range of the water spray pipe, effectively removing the impurity particles on the surface of the adsorption cylinder and ensuring the cleanliness of the adsorption cylinder. The clean adsorption cylinder can continuously and efficiently adsorb the impurity particles and ensure the long-term stable operation of the entire purification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0031] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0032] Figure 3 It is a structural schematic diagram of the purification barrel of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the suction box of the present invention;

[0034] Figure 5 It is a schematic structural diagram of the gas outlet box of the present invention;

[0035] Markings in the attached drawings: 1. air guide module; 11. air suction box; 111. air hole; 112. baffle; 113. water inlet groove; 114. nozzle; 115. first water inlet pipe; 116. first water outlet pipe; 12. air outlet box; 121. cover plate; 122. telescopic member; 13. air pump; 2. purification module; 21. purification barrel; 211. cover; 212. first annular groove; 213. air inlet hole; 22. corona electrode; 23. dust collecting electrode; 24. ultrasonic generator; 241. piezoelectric crystal; 25. adsorption cylinder; 26 , first conduit; 27, second conduit; 271, pressure valve; 281, first tooth plate; 282, first drive wheel; 283, first drive motor; 3, cleaning module; 31, second annular groove; 311, air guide cavity; 312, water guide cavity; 313, air outlet; 32, water spray pipe; 321, spray hole; 33, second water inlet pipe; 34, second water outlet pipe; 341, drainage section; 342, overflow section; 352, second drive wheel; 353, second drive motor; 354, transmission wheel; 355, third tooth plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings 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.

[0037] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0039] like Figures 1 to 3 As shown, the indoor floating particle purification device for drug production of the present invention comprises:

[0040] The air guide module 1 comprises an air intake box 11 and an air outlet box 12 which are arranged at a relative interval. The air intake box 11 and the air outlet box 12 are provided with passages for gas to pass through on their facing surfaces. An air pump 13 is installed on the outer side of the air intake box 11, and the air extraction end of the air pump 13 is connected to the air intake box 11.

[0041] The purification module 2 comprises a purification barrel 21, wherein a corona electrode 22 and a dust collecting electrode 23 are installed in the purification barrel 21, and an annular ultrasonic generator 24 is installed between the corona electrode 22 and the dust collecting electrode 23. An adsorption cylinder 25 is sleeved on the outer side of the dust collecting electrode 23. The top of the purification barrel 21 is connected to the air extraction end of the air pump 13 through a first conduit 26, and the bottom of the purification barrel 21 is connected to the air outlet box 12 through a second conduit 27;

[0042] The working process and principle of this device are as follows:

[0043] After the air pump 13 is started, negative pressure is generated in the air suction box 11, so that air containing suspended particles is sucked in through the channel on the air suction box 11. This is the first step of the entire purification process, and the air to be purified is introduced into the system. The sucked air then enters the purification barrel 21. Inside the purification barrel 21, under the condition of a high voltage electric field between the corona electrode 22 and the dust collecting electrode 23, the gas molecules in the air will be ionized, and a large number of free electrons and positive ions will be generated. The free electrons and positive ions will move in the electric field. These charged particles interact with the particulate matter in the air, so that the particulate matter carries the corresponding charge. The charged particles continue to move forward with the air flow, and the annular ultrasonic generator uses the vibration energy and acoustic effect of the ultrasonic wave to push the particles passing through the air to the center line position. The accumulated charged particles approach the dust collecting electrode 23 and are captured by the adsorption cylinder 25, thereby being separated from the air. After being purified, they become clean, and then enter the air outlet box 12 through the second conduit 27, and are finally discharged back to the indoor environment.

[0044] To ensure that the particles in the air can be quickly charged, a cover 211 is installed on the top of the purification barrel 21. Figure 3 As shown, the bottom of the cover 211 is provided with an opening connected with the purification barrel 21, the corona electrode 22 is installed inside the cover 211, and the first annular groove 212 is installed outside the cover 211. A plurality of air inlet holes 213 connecting the cover 211 and the first annular groove 212 are provided on the side wall of the cover 211, and the plurality of air inlet holes 213 are evenly distributed along the circumference of the cover 211, and one end of the first conduit 26 is connected with the first annular groove 212; the design of the air inlet holes 213 ensures that air can enter evenly, and the air intake mode close to the corona electrode 22 enables the particles to be captured by the electric field at the early stage of entering the purification barrel 21, reducing the distance that the particles move with the airflow in the uncharged state, thereby reducing the possibility of particle escape, which helps to ensure that more particles are effectively removed and improve the purification effect.

[0045] The piezoelectric crystal 241 is the core component of the ultrasonic generator 24. It converts electrical signals into mechanical vibrations through the inverse piezoelectric effect to generate ultrasonic waves. In order to optimize the generation and propagation of ultrasonic waves and improve the purification effect, a number of longitudinally distributed piezoelectric crystals 241 are arranged in the ultrasonic generator 24, and the thickness of the piezoelectric crystals 241 increases from top to bottom. Piezoelectric crystals 241 of different thicknesses will generate ultrasonic waves of different frequencies. The greater the thickness of the piezoelectric crystal 241, the smaller the ultrasonic frequency, the greater the amplitude, and the stronger the penetrating ability. High-frequency ultrasonic waves generate strong vibrations near the surface, causing particles to begin to gather, while low-frequency ultrasonic waves penetrate deep into the particles, further enhancing the aggregation effect, so that particles passing through the air from top to bottom gradually gather toward the center under the action of ultrasonic waves, making them easier to capture.

[0046] Furthermore, the outer wall of the ultrasonic generator 24 is rotatably connected to the inner wall of the purification barrel 21, and a first control structure for driving the ultrasonic generator 24 to rotate is installed on the purification barrel 21; the control structure includes a first tooth plate 281 coaxially fixedly connected to the ultrasonic generator 24, a first driving wheel 282 meshing with the first tooth plate 281, and a first driving motor 283 that drives the first driving wheel 282 to rotate; through this design, when the annular ultrasonic generator 24 rotates, the ultrasonic field formed will also rotate accordingly, and the rotating ultrasonic field can produce a dynamic sound field distribution, so that the particles are continuously subjected to the changing sound wave effect in the sound field. This dynamic sound The field can enhance the movement of particles, causing them to collide and condense more frequently in the sound field, making them easier to gather to the center; at the same time, the rotating ultrasonic field can make the distribution of particles in the annular area more uniform. Since the sound field is constantly rotating, the particles will not concentrate at a certain point, but will be evenly distributed in the annular area and gather toward the center. The uniform distribution can reduce local overload and avoid excessive concentration of particles in certain areas, thereby improving the efficiency and uniformity of aggregation; the rotating ultrasonic field can provide a continuous aggregation effect. Since the sound field is constantly changing, the movement trajectory of the particles in the sound field will also change continuously, thereby increasing the chance of being aggregated.

[0047] In order to make the interior of the purification barrel 21 in a high pressure state, Figure 1 and Figure 3 As shown, a pressure valve 271 is provided on the second conduit 27, and the high pressure state in the purification cylinder can be maintained by adjusting the opening and closing degree of the pressure valve 271; under the high pressure environment, the distance between air molecules is reduced, and the collision chance between particles is increased, so that it is easier to gather together to form larger particle clusters; high pressure can enhance the electric field strength generated by the corona electrode 22, so that the gas molecules in the air are more easily ionized, generating more free electrons and positive ions, and more charged particles interact with the particles, making it easier for the particles to carry a charge, thereby improving the charging efficiency.

[0048] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, a plurality of evenly distributed air holes 111 are provided on the side wall of the air suction box 11 facing the air outlet box 12, a baffle 112 is rotatably connected inside the air suction box 11, the baffle 112 corresponds to the air holes 111, a water inlet trough 113 is installed on the air suction box 11, a plurality of nozzles 114 are connected to the water inlet trough 113, and the plurality of nozzles 114 pass through the air suction box 11 toward the internal area; a first water inlet pipe 115 is connected to the water inlet trough 113, and a first water outlet pipe 116 is connected to the bottom of the air suction box 11; during the operation of the device, the air pump 13 generates suction, and the air carrying particulate impurities passes through the air holes 111. When entering the air intake box 11, the baffle 112 floats up. During the air flowing into the air intake box 11, some particles are retained in the air intake box 11 due to gravity. The accumulated particles and dirt in the air intake box 11 will increase the resistance of air flow, affect the uniformity and stability of the air flow, and thus reduce the purification efficiency. Therefore, water mist is sprayed through the nozzle 114 to flush the inner wall of the air intake box 11 to keep the inside of the air intake box 11 clean, and the waste water is discharged from the first water outlet pipe 116; during the flushing process, the air pump 13 stops working, and the baffle 112 naturally droops to cover the air hole 111, preventing water mist from overflowing from the air hole 111 and avoiding water mist from polluting the surrounding environment.

[0049] Specifically, Figure 1 , Figure 2 and Figure 5 As shown, the air outlet box 12 is opened on one side facing the air intake box 11, and a corresponding cover 121 is movably installed at the opening. A telescopic member 122 is installed inside the air outlet box 12 to drive the cover 121 to move closer to or away from the air outlet box 12; through this design, the telescopic member 122 drives the cover 121 to move, thereby controlling the opening and closing of the air outlet channel. When maintaining the equipment, the cover 121 can be closed to prevent external pollutants from flowing back into the equipment, thereby ensuring the cleanliness of the internal environment; the telescopic member can be an electric push rod, a cylinder or other types of actuators, which can accurately control the opening and closing degree of the cover 121 and adjust the airflow.

[0050] To ensure the continuous adsorption capacity of the adsorption cylinder 25, Figure 1 and Figure 3 As shown, it also includes a cleaning module 3 for cleaning the adsorption cylinder 25, and the cleaning module 3 includes:

[0051] The second annular groove 31 is rotatably connected to the inner wall of the purification barrel 21, and an air guide cavity 311 and a water guide cavity 312 are provided in the second annular groove 31. The adsorption cylinder 25 is horizontally arranged and its two ends are rotatably connected to the second annular groove 31. The second annular groove 31 is provided with an air outlet 313 connecting the air guide cavity 311 and the adsorption cylinder 25;

[0052] The water spray pipe 32 is horizontally installed inside the adsorption cylinder 25 and its two ends are connected to the water guide cavity 312. The water spray pipe 32 is provided with a plurality of spray holes 321 distributed along its length direction, and the spray holes 321 face the adsorption cylinder 25.

[0053] The second water inlet pipe 33 is installed outside the purification barrel 21 and communicates with the water guide cavity 312;

[0054] The second water outlet pipe 34 is installed at the bottom of the purification barrel 21 and communicated with it;

[0055] The second control structure is used to control the rotation of the adsorption cylinder 25;

[0056] The working process and principle of the cleaning module 3 designed in this device are as follows:

[0057] The cleaning water is transported to the water guide chamber 312 through the second water inlet pipe 33, and the cleaning water flows into the water spray pipe 32 through the water guide chamber 312. The multiple spray holes 321 on the water spray pipe 32 spray the cleaning water toward the inside of the adsorption cylinder 25 to clean the dirt and particulate matter inside the adsorption cylinder; the second drive motor 353 is started, and the adsorption cylinder 25 is driven to rotate through the second drive wheel 352 and the second gear plate to ensure that the cleaning range can cover every corner of the adsorption cylinder 25. The cleaned waste water flows to the bottom of the purification barrel 21 and is discharged through the second water outlet pipe 34 to keep the inside of the purification barrel 21 clean.

[0058] In order to prevent water and moisture from corroding the electrode plate and improve the insulation performance of the electrode plate, the dust collecting electrode 23 is coated with a waterproof film.

[0059] like Figure 3 As shown, the second control structure includes:

[0060] The second toothed plate is coaxially fixedly connected to the second annular groove 31; the second driving wheel 352 is meshed with the second toothed plate and driven to rotate by the second driving motor 353;

[0061] The transmission wheel 354 is sleeved on the outer side of the adsorption cylinder 25 and fixedly connected thereto;

[0062] The third tooth plate 355 is disposed above the second annular groove 31 and fixedly connected to the inner wall of the purification barrel 21, and the transmission wheel 354 is meshed with the third tooth plate 355;

[0063] Through the second control structure, while the adsorption cylinder 25 rotates along its axial direction, it also rotates along the axial direction of the third tooth plate 355, thereby driving the rotation of the dust collecting electrode 23, forming a rotating electric field between the corona electrode 22, and the dynamically changing electric field breaks the stable state of the particulate matter in the static electric field, making it easier to be captured by the electric field lines and charged.

[0064] like Figure 1As shown, the second water outlet pipe 34 includes a drainage section 341 and an overflow section 342. The drainage section 341 is directly connected to the purification barrel 21 and is used to transfer water under different pressure conditions. Through this design, the water level in the drainage section 341 can float according to the change of air pressure, so it can effectively respond to the drainage needs under different pressure conditions and ensure the stable operation of the device.

[0065] The indoor floating particle purification device for drug production of the present invention has common mechanical installation, connection or setting methods, and can be implemented as long as it can achieve its beneficial effects.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An indoor floating particle purification device for pharmaceutical production, characterized in that: include: An air guide module (1) comprises an air intake box (11) and an air outlet box (12) which are arranged relatively spaced apart, wherein the air intake box (11) and the air outlet box (12) are provided with passages for gas to pass through on their facing surfaces, an air pump (13) is installed on the outside of the air intake box (11), and an air extraction end of the air pump (13) is in communication with the air intake box (11); A purification module (2) comprises a purification barrel (21), wherein a corona discharge electrode (22) and a dust collecting electrode (23) are installed inside the purification barrel (21) and are spaced apart from each other, an annular ultrasonic generator (24) is installed between the corona discharge electrode (22) and the dust collecting electrode (23), an adsorption cylinder (25) is sleeved on the outer side of the dust collecting electrode (23), the top of the purification barrel (21) is connected to the air extraction end of the air pump (13) through a first conduit (26), and the bottom of the purification barrel (21) is connected to the air outlet box (12) through a second conduit (27); A cover (211) is installed on the top of the purification barrel (21), an opening communicating with the purification barrel (21) is provided at the bottom of the cover (211), the corona electrode (22) is installed inside the cover (211), a first annular groove (212) is installed on the outside of the cover (211), a plurality of air inlet holes (213) communicating with the cover (211) and the first annular groove (212) are provided on the side wall of the cover (211), the plurality of air inlet holes (213) being evenly distributed along the circumference of the cover (211), and one end of the first conduit (26) being communicated with the first annular groove (212); A plurality of longitudinally distributed annular piezoelectric crystals (241) are arranged in the ultrasonic generator (24), and the radial thickness of the plurality of piezoelectric crystals (241) increases sequentially from top to bottom.

2. The indoor floating particle purification device for pharmaceutical production according to claim 1, characterized in that: The outer wall of the ultrasonic generator (24) is rotatably connected to the inner wall of the purification barrel (21), and a first control structure for driving the ultrasonic generator (24) to rotate is installed on the purification barrel (21).

3. The indoor floating particle purification device for pharmaceutical production according to claim 1, characterized in that: The second conduit (27) is provided with a pressure valve (271).

4. The indoor floating particle purification device for pharmaceutical production according to claim 1, characterized in that: A plurality of evenly distributed air holes (111) are provided on a side wall of the air intake box (11) facing the air outlet box (12); a baffle (112) is rotatably connected inside the air intake box (11); the baffle (112) corresponds to the air holes (111); a water inlet trough (113) is installed on the air intake box (11); a plurality of nozzles (114) are connected to the water inlet trough (113); the plurality of nozzles (114) pass through the air intake box (11) and face the internal area; A first water inlet pipe (115) is disposed in communication with the water inlet trough (113), and a first water outlet pipe (116) is disposed in communication with the bottom of the air suction box (11).

5. The indoor floating particle purification device for pharmaceutical production according to claim 1, characterized in that: The air outlet box (12) has an opening on one side facing the air intake box (11), a corresponding cover plate (121) being movably mounted at the opening, and a telescopic member (122) for driving the cover plate (121) to move toward or away from the air outlet box (12) is mounted inside the air outlet box (12).

6. The indoor floating particle purification device for pharmaceutical production according to claim 1, characterized in that: It also includes a cleaning module (3) for cleaning the adsorption cylinder (25), the cleaning module (3) comprising: a second annular groove (31), the second annular groove (31) being rotatably connected to the inner wall of the purification barrel (21), an air guide cavity (311) and a water guide cavity (312) being provided in the second annular groove (31), the adsorption cylinder (25) being arranged horizontally and having both ends rotatably connected to the second annular groove (31), and an air outlet hole (313) communicating with the air guide cavity (311) and the adsorption cylinder (25); a water spray pipe (32) installed horizontally inside the adsorption cylinder (25) and having two ends in communication with the water guide cavity (312); the water spray pipe (32) is provided with a plurality of spray holes (321) distributed along its length direction, and the spray holes (321) face the adsorption cylinder (25); A second water inlet pipe (33) is installed outside the purification barrel (21) and is in communication with the water guide cavity (312); A second water outlet pipe (34) is installed at the bottom of the purification barrel (21) and is in communication with the same; The second control structure is used to control the rotation of the adsorption cylinder (25).

7. The indoor floating particle purification device for pharmaceutical production according to claim 6, characterized in that: The second control structure comprises: A second tooth plate, coaxially and fixedly connected to the second annular groove (31); A second driving wheel (352) meshes with the second toothed plate and is driven to rotate by a second driving motor (353); A transmission wheel (354) is sleeved on the outside of the adsorption cylinder (25) and fixedly connected thereto; The third tooth plate (355) is arranged above the second annular groove (31) and is fixedly connected to the inner wall of the purification barrel (21), and the transmission wheel (354) is meshed with the third tooth plate (355).

8. The indoor floating particle purification device for pharmaceutical production according to claim 6, characterized in that: The second water outlet pipe (34) comprises a drainage section (341) and an overflow section (342); the drainage section (341) is directly connected to the purification barrel (21) and is used to transfer water under different pressure conditions.

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