Engineering filtering system for clean room

Abstract

The utility model provides a clean room engineering filtering system, which relates to the technical field of clean room filtering and comprises a main pipeline, an air inlet pipeline is mounted at one end of the main pipeline, an air outlet pipeline is mounted at the other end of the main pipeline, and a rotating plate is rotatably connected between the main pipeline and the air outlet pipeline and between the main pipeline and the air inlet pipeline. Four circular through grooves are uniformly formed in the rotating plate in the circumferential direction, filter screens are mounted in the circular through grooves, a supporting structure is rotatably connected to the center of the rotating plate through a through hole, and a locking circular plate is mounted at the front end of the supporting structure in an inserted manner. When the filter screens need to be replaced, only the rotating plate needs to be rotated by 90 degrees, the positions of the two idle filter screens in the rotating plate and the positions of the two used filter screens are exchanged, at the moment, the two used filter screens can be rotated to the outside of the pipeline, a worker can disassemble the two used filter screens more conveniently, and the replacement is convenient. And the ventilation effect in the pipeline is not influenced, so that the working efficiency of personnel in the clean room is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of clean room filtering, in particular to a clean room engineering filtering system. Background Art

[0002] A clean room is a dust-free workshop. It is usually a relatively closed environment, and the temperature, humidity, pressure, dust concentration, noise and other factors of the air in the environment can be strictly controlled. In order to ensure that the air inside the clean room is kept at a controlled cleanliness, the ventilation system inside the clean room is usually equipped with various structures such as primary filters, medium efficiency filters and high efficiency filters to ensure that the air entering the clean room is clean.

[0003] Existing primary filters for clean room ventilation generally use high-temperature resistant flat-plate air filters composed of filter elements and protective nets. However, after installation, such filters need to be replaced regularly in order to maintain their filtering effectiveness. During the replacement process, they need to be completely dismantled and installed. The dismantling and installation process is relatively cumbersome and requires professional technicians to operate, and the dismantling and installation efficiency is low. During the replacement, the ventilation inside the clean room will be affected, which may affect the controllability of the environment inside the clean room. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a clean room engineering filtration system which is convenient for replacing a filter screen and has little influence on the ventilation effect inside the clean room.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A clean room engineering filtration system comprises a main duct, one end of which is provided with an air inlet duct, and the other end of which is provided with an air outlet duct; a rotating plate is commonly connected between the main duct, the air outlet duct and the air inlet duct, and four circular through grooves are evenly distributed circumferentially on the rotating plate, that is, the rotating plate is circular, and the four circular through grooves are evenly distributed circumferentially on the rotating plate; a filter screen is installed inside the circular through groove, and a support structure is rotatably connected to the center position of the rotating plate through a through hole, and a locking circular plate is plugged and installed at the front end of the support structure.

[0007] Furthermore, a mounting ring is installed on the outside of the filter screen, and the mounting ring is snap-connected to the circular through groove.

[0008] Furthermore, a valve is installed on the surface of the air inlet duct.

[0009] Furthermore, the support structure includes a driven shaft, a side support plate and a bottom plate, the driven shaft is connected to the rotating plate through a through hole, the front and rear ends of the driven shaft are rotatably connected to a side support plate, and the lower ends of the two side support plates are jointly installed with a bottom plate.

[0010] Furthermore, a cross groove is provided inside each of the driven rotating shaft and the side support plate, and an annular groove is provided at the front edge of a side support plate at the front end of the driven rotating shaft.

[0011] Furthermore, an annular clamping block matching the annular clamping groove is installed at the rear edge of the locking circular plate, and a limiting plate matching the cross groove is installed at the rear center of the locking circular plate. The limiting plate is a long strip-shaped plate.

[0012] Furthermore, a cover is installed at the openings at the front end and the rear end of the mounting ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The present application installs an air inlet duct and an air outlet duct at both ends of the main duct respectively. Air enters the main duct from the air inlet duct and is discharged through the air supply duct. During the movement, the airflow passes through two filters arranged inside the rotating plate. The two filters filter the passing airflow, thereby achieving a double-layer filtering effect. The rotation of the rotating plate can be limited by a locking circular plate. When the filter needs to be replaced, it is only necessary to rotate the rotating plate 90° so that the two idle filters inside the rotating plate are swapped with the two used filters. At this time, the two used filters will be rotated to the outside of the duct, and the staff can easily disassemble, replace, clean, etc. the two used filters, and the replacement process is very quick and hardly affects the ventilation effect of the duct.

[0015] 2. The present application uses a limit plate and a cross groove in combination. When the rotating plate needs to be locked, it is only necessary to drive the locking circular plate to insert the limit plate into the inside of the cross groove, and make the annular clamping block engage into the inside of the annular clamping groove. Since the side support plate is a fixed structure, the limit plate inside the side support plate will be fixed, and the limit plate will also fix the driven shaft, so that the driven shaft and the rotating plate cannot be rotated. The disassembly process only requires pulling out the locking circular plate and the limit plate, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the rotating plate and the mounting ring of the utility model;

[0018] Figure 3It is a structural schematic diagram of the rotating plate and the supporting structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the limit plate and the cross groove of the utility model.

[0020] In the figure: 1. main duct; 2. air outlet duct; 3. air inlet duct; 4. supporting structure; 401. driven shaft; 402. side support plate; 403. bottom plate; 5. rotating plate; 6. circular groove; 7. sealing cover; 8. filter screen; 9. mounting ring; 10. valve; 11. locking circular plate; 12. annular groove; 13. cross groove; 14. limit plate; 15. annular block. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0022] like Figure 1-4 As shown, a clean room engineering filtration system comprises a main duct 1, one end of the main duct 1 is provided with an air inlet duct 3, and the other end of the main duct 1 is provided with an air outlet duct 2, external air enters the interior of the main duct 1 through the air inlet duct 3, and is discharged through the air outlet duct 2; a rotating plate 5 is commonly connected between the main duct 1, the air outlet duct 2 and the air inlet duct 3, and the air flow needs to pass through the rotating plate 5 twice in the process from the air inlet duct 3 to the air outlet duct 2; four circular through grooves 6 are evenly distributed in the circumferential direction on the rotating plate 5, the sizes of the four circular through grooves 6 are consistent and match the size of the main duct 1, a filter screen 8 is installed inside the circular through groove 6, a filter screen 8 is provided at the connection between the main duct 1 and the air inlet duct 3, and the main duct 1 and the air inlet duct 3 are connected. A filter screen 8 is also provided at the connection of the air outlet duct 2. During the transportation process, the airflow needs to pass through two filter screens 8 to form a double-layer filtering effect; the center position of the rotating plate 5 is rotatably connected to the support structure 4 through a through hole, and the rotating plate 5 can rotate on the surface of the support structure 4. When the rotating plate 5 rotates 90°, the positions of the four circular through grooves 6 will change. In daily use, only the filter screens 8 inside two circular through grooves 6 are in use. When the rotating plate 5 rotates 90 degrees, the two idle filter screens 8 will replace the filter screen 8 in use to form a cycle; a locking circular plate 11 is installed at the front end of the support structure 4, and the locking circular plate 11 can be used to lock the position of the rotating plate 5 to prevent the rotating plate 5 from rotating.

[0023] Specifically, a mounting ring 9 is installed on the outside of the filter screen 8, and the mounting ring 9 is snap-connected to the circular through groove 6. The mounting ring 9 and the circular through groove 6 are detachably connected. When the filter screen 8 needs to be replaced, it is only necessary to remove the mounting ring 9 from the inside of the circular through groove 6 to replace the new mounting ring 9 and the filter screen 8.

[0024] Furthermore, a valve 10 is installed on the surface of the air inlet duct 3 , and the opening and closing of the air inlet duct 3 can be controlled by the valve 10 .

[0025] Furthermore, the support structure 4 includes a driven shaft 401, a side support plate 402 and a bottom plate 403. The driven shaft 401 is connected to the rotating plate 5 through a through hole. The front and rear ends of the driven shaft 401 are rotatably connected to a side support plate 402. The lower ends of the two side support plates 402 are jointly installed with a bottom plate 403. The driven shaft 401 will rotate following the action of external force. When the rotating plate 5 rotates, the driven shaft 401 engaged with the rotating plate 5 will rotate synchronously, and the driven shaft 401 is supported by the two side support plates 402 and the bottom plate 403.

[0026] Furthermore, a cross groove 13 is provided inside the driven shaft 401 and the side support plate 402, and the cross groove 13 is in the shape of a cross. An annular groove 12 is provided at the front edge of a side support plate 402 at the front end of the driven shaft 401, and the annular groove 12 and the cross groove 13 do not affect each other. An annular clamping block 15 matching the annular groove 12 is installed at the rear edge of the locking circular plate 11. The annular clamping block 15 is clamped into the interior of the annular groove 12, so that the locking circular plate 11 can be connected to the front end of the side support plate 402, and the rear end center position of the locking circular plate 11 A limit plate 14 is installed to match the cross groove 13. The limit plate 14 is preferably a long strip of plate, and the size of the limit plate 14 matches the size of the cross groove 13; the locking circular plate 11 drives the limit plate 14 to be inserted into the interior of the cross groove 13, and the annular clamping block 15 is clamped into the interior of the annular clamping groove 12. Since the side support plate 402 is a fixed structure, the limit plate 14 inside the side support plate 402 will be fixed, and the limit plate 14 will also fix the driven shaft 401, so that the driven shaft 401 and the rotating plate 5 cannot be rotated. The disassembly process only requires pulling out the locking circular plate 11 and the limit plate 14.

[0027] Furthermore, a cover 7 is installed at the openings at the front and rear ends of the mounting ring 9. Since among the four circular through grooves 6, only two mutually symmetrical circular through grooves 6 are used for daily work, the other two circular through grooves 6 and the internal filter screen 8 are in an idle state, external dust can easily enter and contaminate the filter screen 8. The idle circular through grooves 6 can be closed by the two covers 7 to prevent the filter screen 8 from being disturbed by the outside world. The covers 7 need to be removed in advance before use.

[0028] The method of using the present embodiment is as follows: by installing the air inlet duct 3 and the air outlet duct 2 at both ends of the main duct 1 respectively, the air enters the main duct 1 from the air inlet duct 3 and is discharged through the air supply duct. During the movement, the airflow passes through the two filter screens 8 arranged inside the rotating plate 5, and the passing airflow is filtered by the two filter screens 8 to achieve a double-layer filtering effect. The rotation of the rotating plate 5 can be limited by the locking circular plate. When the filter screen 8 needs to be replaced, it is only necessary to rotate the rotating plate 5 90° so that the two idle filter screens 8 inside the rotating plate 5 are exchanged with the two used filter screens 8. At this time, the two used filter screens 8 will be rotated to the outside of the duct, and the staff can more conveniently remove the two used filter screens 8.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Those skilled in the art may modify or replace the technical solutions described in the above embodiments. Any modification, equivalent replacement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A clean room engineering filtration system, comprising a main pipeline (1), characterized in that: An air inlet duct (3) is installed at one end of the main duct (1), and an air outlet duct (2) is installed at the other end; a rotating plate (5) is commonly connected between the main duct (1), the air outlet duct (2) and the air inlet duct (3); four circular through grooves (6) are evenly distributed in an annular direction on the rotating plate (5); a filter screen (8) is installed inside the circular through groove (6); a support structure (4) is rotatably connected to the center of the rotating plate (5) via a through hole; a locking circular plate (11) is plugged and installed at the front end of the support structure (4).

2. The clean room engineering filtration system according to claim 1, characterized in that: A mounting ring (9) is mounted on the outside of the filter screen (8), and the mounting ring (9) is snap-connected to the circular through groove (6).

3. The clean room engineering filtration system according to claim 1, characterized in that: A valve (10) is installed on the surface of the air inlet duct (3).

4. The clean room engineering filtration system according to claim 1, characterized in that: The support structure (4) comprises a driven rotating shaft (401), a side supporting plate (402) and a bottom plate (403); the driven rotating shaft (401) is connected to the rotating plate (5) via a through hole; the front and rear ends of the driven rotating shaft (401) are both rotatably connected to a side supporting plate (402); the bottom ends of the two side supporting plates (402) are jointly mounted with the bottom plate (403).

5. The clean room engineering filtration system according to claim 4, characterized in that: A cross groove (13) is provided inside the driven rotating shaft (401) and the side support plate (402), and an annular groove (12) is provided at the front edge of a side support plate (402) at the front end of the driven rotating shaft (401).

6. The clean room engineering filtration system according to claim 5, characterized in that: An annular clamping block (15) matching the annular clamping groove (12) is installed at the rear edge of the locking circular plate (11), and a limiting plate (14) matching the cross groove (13) is installed at the rear center of the locking circular plate (11).

7. The clean room engineering filtration system according to claim 6, characterized in that: The limiting plate (14) is a long strip-shaped plate.

8. The clean room engineering filtration system according to claim 2, characterized in that: A sealing cover (7) is installed at the openings at the front end and the rear end of the mounting ring (9).

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