Clean room with uniform airflow

Abstract

The utility model relates to a clean room with uniform airflow, which structurally comprises a clean room body, a top plate is arranged at the top of the clean room body, a ventilation device is mounted on the top plate, the ventilation device is connected with an air draft device, the air draft device extends downwards from the top plate to the bottoms of two sides of the clean room body, and a filter device is further connected between the ventilation device and the air draft device. The utility model has the advantages that: 1) the reasonably designed air exhaust and air supply mechanisms are matched with each other to realize internal circulation of air in the clean room, and a plurality of groups of air exhaust heads and sprayers are matched with each other to realize stable guidance of airflow and uniform airflow, so that efficient ventilation in the clean room can be effectively realized, the energy efficiency is improved, and the energy consumption is reduced; and 2) the reasonably designed filtering device can filter air, improve the quality of circulating air, reduce the condition of dust blockage of subsequent equipment and ensure stable operation of the equipment, and a filter screen is convenient to clean and replace and easy to use.

Description

Technical Field

[0001] The utility model relates to a clean room, in particular to a clean room with improved internal air flow uniformity. Background Art

[0002] A clean room is a closed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise are strictly controlled. It is used in industries that are in a rapid development stage, such as the pharmaceutical manufacturing industry. The construction requirements and standards of clean rooms are constantly increasing, especially the environmental requirements for clean rooms. While meeting environmental requirements, reasonable optimization and design of clean room air-conditioning systems can reduce energy consumption.

[0003] CN105926986B discloses an energy-saving clean room with balanced airflow, comprising: an air-leaking bottom plate, a first return air duct is arranged between the bottom wall of the clean room; a top plate, a second return air duct is arranged between the top wall of the clean room, and return air ports are arranged on the side walls of the clean room around the top plate; a heat exchange channel, in which heat exchange tubes are arranged in a spiral pattern, the inlet and outlet of the heat exchange tubes are arranged on the top of the surrounding heat exchange channels, the inlet of the heat exchange tubes is connected to the fresh air delivery port, and the outlet of the heat exchange tubes is connected to the inlet of the fresh air unit; a circulation unit, a first air inlet is connected to the outlet of the fresh air unit, and a second air inlet of the circulation unit is connected to the top center of the second return air duct; and a silencer fan is connected to the outlet of the circulation unit.

[0004] Although the above-mentioned prior art solves the problem of poor ventilation efficiency caused by chaotic airflow in clean rooms, it is limited in application and cannot be applied to pharmaceutical clean rooms with upward delivery and side return. Specifically, ventilation and air supply are carried out through the inlet and outlet of the central air conditioner. Since the central air conditioner has only a single inlet and outlet, during the use of the clean room, it is easy for uneven ventilation to occur at the edge and middle of the clean room, resulting in turbulent airflow inside the clean room, affecting the use effect and normal use of the equipment, and also causing an increase in the energy consumption of the air conditioning system. Utility Model Content

[0005] The utility model provides a clean room with uniform airflow, which aims to overcome the above-mentioned shortcomings of the prior art and improve the uniformity of the airflow in the clean room.

[0006] The technical solution of the utility model is: a clean room with uniform airflow, the structure of which includes a clean room body, a top plate is arranged on the top of the clean room body, a ventilation device is installed on the top plate, the ventilation device is connected to the exhaust device, the exhaust device extends downward from the top plate to the bottom of both sides of the clean room body, and a filter device is also connected between the ventilation device and the exhaust device. When the exhaust device is started during operation, the air in the clean room body is filtered by the exhaust device through the filter device and then sent back to the clean room body by the ventilation device.

[0007] Preferably, the exhaust device includes a plurality of exhaust heads evenly spaced along the bottom of the two side walls of the clean room body, adjacent exhaust heads are connected in series through the second conduit and connected to the filter device, the filter device is connected to the air pump on the top surface of the top plate through the third conduit, the air pump is connected to the connector through the fourth conduit, the connector is connected to the ventilation device, and the bottom of the fourth conduit is supported on the top surface of the top plate by a bracket. The exhaust head and the air pump are used to realize the exhaust step of the internal circulation of the air in the clean room body, and multiple groups of exhaust heads can be used in conjunction with the ventilation device to achieve stable guidance of the airflow.

[0008] Preferably, the filtering device comprises a box body fixed on the outer side wall of the clean room body, a box cover is detachably mounted on the front of the box body, the top and bottom of the box body are respectively connected to the third conduit and the second conduit, a filter screen is arranged in the box body, a storage groove with two sides inclined downward is arranged at the bottom of the filter screen, and a mounting shell is sleeved on the outside of the filter screen and the storage groove. The filter screen filters the air flowing through, improves the air quality, reduces the dust blockage of subsequent equipment, and ensures the stable operation of the equipment. The storage groove can collect part of the dust filtered by the filter screen, reduce the probability of dust adhering to the second conduit, and facilitate the cleaning of the collected dust.

[0009] Preferably, a sleeve block is provided on the top of the installation shell, a positioning rod matching the shape of the sleeve block is provided in the box body, the sleeve block is sleeved on the positioning rod, base blocks are provided on both sides of the box body, bolts are provided on both sides of the box cover, and the box cover is detachably connected to the base blocks on both sides of the box body through the bolts. The detachable connection between the installation shell and the box cover can facilitate cleaning of the storage tank or replacement of the filter screen.

[0010] Preferably, the ventilation device includes a fan installed on the top surface of the top plate, the top of the fan is connected to the connector of the exhaust device, the side of the fan is evenly connected to one end of a plurality of first ducts, and the other end of each first duct passes through the top plate and is respectively connected to a guide mechanism on the bottom surface of the top plate. The fan can conduct gas diversion through a plurality of first ducts, and with the help of the guide cover, the airflow can be evenly guided to the upper area of ​​the clean room, and the airflow can be dispersed and guided, and with the help of the exhaust device, the gas can flow downward, ensuring that the air volume at the edge and the middle of the clean room is uniform, achieving uniform airflow inside the clean room, and improving cleanliness. The improved air supply port can achieve efficient ventilation of the clean room, improve energy efficiency, and reduce energy consumption.

[0011] Preferably, the diversion mechanism includes a nozzle and a diversion cover, the nozzle is fixed on the bottom surface of the top plate and connected to the other end of the first conduit, the bottom of the nozzle is connected to the diversion cover through a sliding rod, a spring is sleeved on the sliding rod, a diversion groove inclined downward is provided on the top of the diversion cover, and a guide groove inclined downward is provided on the outer edge of the diversion cover, the width of the guide groove is smaller than the width of the diversion groove, and the angle between the guide groove and the horizontal plane is larger than the angle between the diversion groove and the horizontal plane.

[0012] Advantages of the utility model: 1) Reasonably designed air extraction and air supply mechanisms cooperate with each other to realize the air circulation in the clean room. Multiple sets of air extraction heads and nozzles cooperate with each other to realize the stable guidance of airflow and achieve uniform airflow, which can effectively realize efficient ventilation in the clean room, improve energy efficiency and reduce energy consumption;

[0013] 2) Reasonably designed filtering devices can filter the air, improve the quality of circulating air, reduce dust blockage in subsequent equipment, ensure stable operation of the equipment, and the filter is easy to clean and replace and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a clean room with uniform airflow according to the utility model.

[0015] Figure 2 yes Figure 1 Schematic diagram of the structure from another angle.

[0016] Figure 3 yes Figure 1 Schematic diagram of the structure when the top plate is hidden.

[0017] Figure 4 yes Figure 3 Schematic diagram of the structure from another angle.

[0018] Figure 5 yes Figure 1 Schematic diagram of the structure installed on the bottom surface of the middle top plate and the side wall of the clean room body.

[0019] Figure 6 yes Figure 5 Schematic diagram of the structure of the middle flow guide mechanism.

[0020] Figure 7 yes Figure 6 Schematic diagram of the structure from another angle.

[0021] Figure 8 yes Figure 5 Schematic diagram of the structure from another angle.

[0022] Fig. 9 yes Figure 2 Schematic diagram of the structure of the filtration device.

[0023] In the figure, 1 is the clean room body, 2 is the door body, 3 is the pedal, 4 is the observation window, 5 is the operating table, 6 is the top plate, 7 is the ventilation device, 71 is the fan, 72 is the first duct, 73 is the guide cover, 74 is the nozzle, 75 is the diversion groove, 76 is the guide groove, 77 is the slide bar, 78 is the spring, 8 is the exhaust device, 81 is the exhaust head, 82 is the second duct, 83 is the box body, 84 is the third duct, 85 is the air pump, 86 is the bracket, 87 is the connector, 88 is the box cover, 89 is the fourth duct, 9 is the filtering device, 91 is the filter screen, 92 is the bolt, 93 is the mounting shell, 94 is the storage groove, 95 is the positioning rod, 96 is the sleeve block, 97 is the base block, and 10 is the lighting lamp. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with embodiments and specific implementation methods.

[0025] like Figure 1 As shown, a clean room with uniform airflow comprises a clean room body 1, a top plate 6 is arranged on the top of the clean room body 1, a ventilation device 7 is mounted on the top plate 6, the ventilation device 7 is connected to an exhaust device 8, the exhaust device 8 extends downward from the top plate 6 to the bottom of both sides of the clean room body 1, and a filtering device 9 is also connected between the ventilation device 7 and the exhaust device 8.

[0026] When working, the exhaust device 8 is started, and the air in the clean room body 1 is filtered by the exhaust device 8 through the filter device 9 and then sent back into the clean room body 1 through the ventilation device 7.

[0027] like Figure 1 , 3 As shown in Figures 4 and 5, as the basic functional structure of a clean room, a door body 2 is provided on one side of a clean room body 1, a pedal 3 is provided on the bottom edge of the clean room body 1 outside the door body 2, observation windows 4 are provided on both sides of the clean room body 1 adjacent to the door body 2, an operating table 5 is provided inside the clean room body 1, and a lighting lamp 10 is installed on the bottom surface of the top plate 6.

[0028] like Figure 1-5 As shown in , 8, the exhaust device 8 includes a plurality of exhaust heads 81 evenly spaced along the bottom of the two side walls of the clean room body 1, and adjacent exhaust heads 81 are connected in series with each other through a second duct 82 and connected to a filter device 9, the filter device 9 is connected to an air pump 85 on the top surface of the top plate 6 through a third duct 84, the air pump 85 is connected to a connector 87 through a fourth duct 89, the connector 87 is connected to the ventilation device 7, and the bottom of the fourth duct 89 is supported on the top surface of the top plate 6 by a bracket 86.

[0029] The exhaust head 81 is used in conjunction with the air pump 85 to realize the exhaust step of the air circulation in the clean room body 1. Multiple sets of exhaust heads 81 can cooperate with the ventilation device 7 to achieve stable guidance of the airflow. The bracket 86 can reduce the probability of bending of the fourth conduit 89 and ensure the stable delivery of the airflow. When in use, the air pump 85 is turned on to work, and the exhaust head 81 sucks the air in the clean room body 1 into the filter device 9 through the second conduit 82. The filtered air is transported to the ventilation device 7 through the air pump 85 and the fourth conduit 89, and is evenly guided to the upper area of ​​the clean room.

[0030] like Figure 2 , 4 As shown in Figures 5, 8 and 9, the filtering device 9 includes a box body 83 fixed on the outer wall of the clean room body 1, a box cover 88 is detachably mounted on the front of the box body 83, the top and bottom of the box body 83 are respectively connected to the third conduit 84 and the second conduit 82, a filter screen 91 is arranged in the box body 83, and a storage groove 94 inclined downward on both sides is arranged at the bottom of the filter screen 91, a mounting shell 93 is sleeved on the outer side of the filter screen 91 and the storage groove 94, a sleeve block 96 is arranged on the top of the mounting shell 93, a positioning rod 95 matching the shape of the sleeve block 96 is arranged in the box body 83, and the sleeve block 96 is sleeved on the positioning rod 95, base blocks 97 are arranged on both sides of the box body 83, and bolts 92 are respectively arranged on both sides of the box cover 88, and the box cover 88 is detachably connected to the base blocks 97 on both sides of the box body 83 through the bolts 92.

[0031] The filter 91 filters the air flowing through, improving the air quality, reducing the possibility of dust blockage in subsequent equipment, and ensuring the stable operation of the equipment. The storage tank 94 can collect part of the dust filtered by the filter 91, reduce the probability of dust adhering to the second duct 82, and facilitate the cleaning of the collected dust. The detachable connection of the box cover 88 can facilitate the cleaning of the storage tank 94 or the replacement of the filter 91.

[0032] like Figure 1 , 2 As shown in , 5-8, the ventilation device 7 includes a fan 71 installed on the top surface of the top plate 6, the top of the fan 71 is connected to the connector 87 of the exhaust device 8, the side of the fan 71 is evenly connected to one end of a plurality of first ducts 72, the other end of each first duct 72 passes through the top plate 6 and is respectively connected to a guide mechanism on the bottom surface of the top plate 6, the guide mechanism includes a nozzle 74 and a guide cover 73, the nozzle 74 is fixed on the bottom surface of the top plate 6 and connected to the other end of the first duct 72, the bottom of the nozzle 74 is connected to the guide cover 73 through a slide rod 77, a spring 78 is sleeved on the slide rod 77, a diverter groove 75 inclined downward is provided on the top of the guide cover 73, a guide groove 76 inclined downward is provided on the outer edge of the guide cover 73, the width of the guide groove 76 is smaller than the width of the diverter groove 75, and the angle between the guide groove 76 and the horizontal plane is larger than the angle between the diverter groove 75 and the horizontal plane.

[0033] The air discharged from the fan 71 can be diverted through multiple first ducts 72, and the airflow can be uniformly guided to the upper area of ​​the clean room by the guide cover 73, and the airflow can be dispersed and guided. The downward flow of the gas can be realized by the exhaust device 8, ensuring the uniform airflow at the edge and middle of the clean room, achieving uniform airflow inside the clean room, improving the cleanliness, and the improved air supply port can achieve efficient ventilation of the clean room, improve energy efficiency, and reduce energy consumption. When in use, turn on the air pump 85 and the fan 71, the air pump 85 works, and the air extraction head 81 sucks the air in the clean room body 1 into the box 83 through the second duct 82, and then the air passes through the filter 91, and some dust can fall into the storage groove 94. The filtered air is transported to the fan 71 through the air pump 85 and the fourth duct 89, and the fan 71 then transports the supplied air in the fourth duct 89 to the nozzle 74 through the first duct 72, and then the gas is uniformly guided to the upper area of ​​the clean room through the guide cover 73.

[0034] All the components mentioned above are prior art, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A clean room with uniform airflow, characterized in that: The clean room body (1) comprises a top plate (6) on the top of the clean room body (1), a ventilation device (7) is mounted on the top plate (6), the ventilation device (7) is connected to an exhaust device (8), the exhaust device (8) extends downward from the top plate (6) to the bottom of both sides of the clean room body (1), and a filter device (9) is connected between the ventilation device (7) and the exhaust device (8).

2. A clean room with uniform airflow as claimed in claim 1, characterized in that: The exhaust device (8) comprises a plurality of exhaust heads (81) evenly spaced along the bottom of the two side walls of the clean room body (1); adjacent exhaust heads (81) are connected in series with each other through a second duct (82) and are connected to a filter device (9); the filter device (9) is connected to an air pump (85) on the top surface of a top plate (6) through a third duct (84); the air pump (85) is connected to a connector (87) through a fourth duct (89); the connector (87) is connected to the ventilation device (7); and the bottom of the fourth duct (89) is supported on the top surface of the top plate (6) by a bracket (86).

3. A clean room with uniform airflow as claimed in claim 2, characterized in that: The filtering device (9) comprises a box body (83) fixed on the outer wall of the clean room body (1); a box cover (88) is detachably mounted on the front of the box body (83); the top and bottom of the box body (83) are respectively connected to the third conduit (84) and the second conduit (82); a filter screen (91) is arranged inside the box body (83); the bottom of the filter screen (91) is provided with storage grooves (94) inclined downward on both sides; and a mounting shell (93) is sleeved outside the filter screen (91) and the storage groove (94).

4. A clean room with uniform airflow as claimed in claim 3, characterized in that: A sleeve block (96) is arranged on the top of the mounting shell (93), a positioning rod (95) whose shape matches that of the sleeve block (96) is arranged inside the box body (83), the sleeve block (96) is sleeved on the positioning rod (95), base blocks (97) are arranged on both sides of the box body (83), bolts (92) are respectively arranged on both sides of the box cover (88), and the box cover (88) is detachably connected to the base blocks (97) on both sides of the box body (83) via the bolts (92).

5. A clean room with uniform airflow as claimed in claim 3, characterized in that: The ventilation device (7) comprises a fan (71) mounted on the top surface of the top plate (6), the top of the fan (71) being connected to a connector (87) of the exhaust device (8), the side of the fan (71) being evenly connected to one end of a plurality of first ducts (72), the other end of each first duct (72) passing through the top plate (6) and being respectively connected to a flow guide mechanism on the bottom surface of the top plate (6).

6. A clean room with uniform airflow as claimed in claim 5, characterized in that: The flow guide mechanism comprises a nozzle (74) and a flow guide cover (73), wherein the nozzle (74) is fixed on the bottom surface of the top plate (6) and connected to the other end of the first guide tube (72), the bottom of the nozzle (74) is connected to the flow guide cover (73) via a slide rod (77), a spring (78) is sleeved on the slide rod (77), a diversion groove (75) inclined downward is provided on the top of the flow guide cover (73), and a guide groove (76) inclined downward is provided on the outer edge of the flow guide cover (73), the width of the guide groove (76) is smaller than the width of the diversion groove (75), and the angle between the guide groove (76) and the horizontal plane is larger than the angle between the diversion groove (75) and the horizontal plane.

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