Fresh air circulating unit for clean room

Abstract

The utility model relates to the field of circulating units, and discloses a fresh air circulating unit for a clean room, which comprises a case, a circulating component is mounted at the rear end of the case, the circulating component comprises an air feeder, the front end of the air feeder is mounted at the rear end of the case, and a suction fan is mounted at the rear end of the case close to the bottom end of the air feeder. A first flow dividing pipe is installed at the front end of the air feeder, the outer wall of the first flow dividing pipe is fixedly connected to the inner wall of the machine box, an adjusting assembly is installed at the top end of the machine box, a second flow dividing pipe is installed at the position, close to the bottom end of the first flow dividing pipe, of the inner wall of the machine box, and the rear end of the second flow dividing pipe is installed at the front end of the air feeder. The bottom end of the first flow dividing pipe is fixedly connected with a connecting pipe. According to the utility model, the flow direction of air flow in the device can be changed by adjusting the three-way valve I and the three-way valve II in the device, so that the rear end of the filter screen can be cleaned under the condition that the filter screen is not disassembled, and the whole device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of circulation units, in particular to a fresh air circulation unit for a clean room. Background Technique

[0002] A fresh air unit is an air conditioning device that provides fresh air. Its working principle is to extract fresh air outdoors, process it through dust removal, dehumidification, cooling, etc., and then send it into the room through a fan. When entering the indoor space, it replaces the original air in the room. A fresh air circulation unit is usually used in special places such as clean rooms.

[0003] In order to achieve the dust removal effect, a filter plate is usually set at the air outlet of the fresh air circulation unit to filter dust. In order to achieve a better dust removal effect, a small-aperture filter screen is generally used in the fresh air circulation unit. Compared with the conventional filter screen, the small-aperture filter screen is more likely to be blocked, so it needs to be disassembled and cleaned, which is inconvenient to use. Therefore, a fresh air circulation unit for a clean room is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a fresh air circulation unit for a clean room, aiming to improve the problem that "the fresh air circulation unit uses a small-aperture filter screen to filter dust and debris, and needs to frequently disassemble the filter screen for cleaning, which is inconvenient to use" in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A fresh air circulation unit for a clean room, including a chassis, a circulation component is installed at the rear end of the chassis, the circulation component includes a blower, the front end of the blower is installed at the rear end of the chassis, an air suction fan is installed at the bottom end of the chassis near the blower, a first shunt pipe is installed at the front end of the blower, the outer wall of the first shunt pipe is fixedly connected to the inner wall of the chassis, and an adjustment component is installed at the top end of the chassis.

[0006] As a further description of the above technical scheme:

[0007] A second shunt pipe is installed at the inner wall of the chassis near the bottom end of the first shunt pipe, the rear end of the second shunt pipe is installed at the front end of the blower, a connecting pipe is fixedly connected to the bottom end of the first shunt pipe, and the bottom end of the connecting pipe is fixedly connected to the top end of the second shunt pipe.

[0008] As a further description of the above technical scheme:

[0009] A second three-way pipe is installed at the front end of the first shunt pipe, a second filter pipe is installed at the front end of the second three-way pipe, a first three-way pipe is installed at the right end of the first shunt pipe near the second three-way pipe, and a first filter pipe is installed at the front end of the first three-way pipe.

[0010] As a further description of the above technical solution:

[0011] The rear end of the second tee is installed at the front end of the second shunt pipe, and the front end of the first tee is installed at a position near the right end of the front end of the second shunt pipe.

[0012] As a further description of the above technical solution:

[0013] A first three-way valve is rotatably connected to the top end of the connecting pipe. The top end of the first three-way valve is rotatably connected to the inner wall of the first shunt pipe. The bottom end of the first three-way valve is fixedly connected to a second three-way valve, and the bottom end of the second three-way valve is rotatably connected to the inner wall of the second shunt pipe.

[0014] As a further description of the above technical solution:

[0015] The adjusting assembly includes an adjusting shaft. The bottom end of the adjusting shaft is fixedly connected to the top end of the first three-way valve. The adjusting shaft passes through and is rotatably connected to the top end of the chassis.

[0016] As a further description of the above technical solution:

[0017] A knob is fixedly connected to the top end of the adjusting shaft. A clamping block passes through and is slidably connected to the front end of the knob. The top end of the chassis is fixedly connected to an adjusting sleeve. The bottom end of the knob is rotatably connected to the top end of the adjusting sleeve. An adjusting groove is provided on the inner wall of the adjusting sleeve, and the adjusting groove is adapted to the clamping block.

[0018] As a further description of the above technical solution:

[0019] The rear end of the clamping block is fixedly connected to an adjusting spring, and the rear end of the adjusting spring is fixedly connected to the inner wall of the knob.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by adjusting the first three-way valve and the second three-way valve inside the device, the flow direction of the air flow inside the device can be changed, so that the rear end of the filter screen can be cleaned without disassembling the filter screen, and the whole device is more convenient to use.

[0022] 2. In the utility model, by providing the adjusting assembly, the first three-way valve and the second three-way valve can be fixed, so that the first three-way valve and the second three-way valve can be prevented from rotating randomly during use, and the whole device has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the whole device in the utility model;

[0024] Figure 2This is a schematic cross-sectional view of the three-dimensional structure of the overall device in the present utility model;

[0025] Figure 3 This is a schematic exploded cross-sectional view of the three-dimensional structure of the circulation component in the present utility model;

[0026] Figure 4 This is a schematic exploded cross-sectional view of the three-dimensional structure of the adjustment component in the present utility model.

[0027] Legend description:

[0028] 1. Chassis; 2. Circulation component; 21. Blower; 22. Exhaust fan; 23. Filter pipe 1; 24. Filter pipe 2; 25. Shunt pipe 1; 26. Shunt pipe 2; 27. Connecting pipe; 28. Three-way pipe 1; 29. Three-way pipe 2; 210. Three-way valve 1; 211. Three-way valve 2; 3. Adjustment component; 31. Adjusting shaft; 32. Knob; 33. Block; 34. Adjusting spring; 35. Adjusting sleeve; 36. Adjusting groove. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] Refer to Figure 1 - Figure 3 As shown in FIGS. - [FIG. numbers not provided in the original], an embodiment provided by the present utility model is: A fresh air circulation unit for a clean room, including a chassis 1 for accommodating a circulation component 2. A circulation component 2 for driving air circulation is installed at the rear end of the chassis 1. The circulation component 2 includes a blower 21 for delivering air into the device. The front end of the blower 21 is installed at the rear end of the chassis 1. An exhaust fan 22 for sucking air to the outside of the device is installed near the bottom end of the blower 21 at the rear end of the chassis 1. Both the blower 21 and the exhaust fan 22 are prior arts and can start working by connecting to the power supply. Due to the prior art, no further description will be made in this case. A shunt pipe 1 25 for shunting fresh air is installed at the front end of the blower 21. The outer wall of the shunt pipe 1 25 is fixedly connected to the inner wall of the chassis 1. An adjustment component 3 for adjusting the working state of the circulation component 2 is installed at the top end of the chassis 1.

[0031] Refer to Figure 1 - Figure 3, on the inner wall of the chassis 1 near the bottom end of the first shunt pipe 25, a second shunt pipe 26 for allowing indoor air to enter the suction fan 22 is installed. The rear end of the second shunt pipe 26 is installed at the front end of the blower 21. The bottom end of the first shunt pipe 25 is fixedly connected to a connecting pipe 27 for accommodating the first three-way valve 210 and the second three-way valve 211. The bottom end of the connecting pipe 27 is fixedly connected to the top end of the second shunt pipe 26. At the front end of the first shunt pipe 25, a second three-way pipe 29 for supplying air to the second filter pipe 24 is installed. At the front end of the second three-way pipe 29, a second filter pipe 24 for filtering fresh air is installed. Near the right end of the second three-way pipe 29 at the front end of the first shunt pipe 25, a first three-way pipe 28 for supplying air to the first filter pipe 23 is installed. At the front end of the first three-way pipe 28, a first filter pipe 23 for filtering fresh air is installed. The fresh air conveyed by the blower 21 can enter the interiors of the first three-way pipe 28 and the second three-way pipe 29 through the first shunt pipe 25, and finally be discharged into the room through the first filter pipe 23 and the second filter pipe 24.

[0032] Refer to Figure 1 - Figure 3 , the rear end of the second three-way pipe 29 is installed at the front end of the second shunt pipe 26. After starting the suction fan 22, the suction fan 22 will drive the indoor air to flow outwards through the second three-way pipe 29. The front end of the first three-way pipe 28 is installed at a position near the right end at the front end of the second shunt pipe 26. The top end of the connecting pipe 27 is rotatably connected to a first three-way valve 210 for controlling the air flow direction inside the first shunt pipe 25. The top end of the first three-way valve 210 is rotatably connected to the inner wall of the first shunt pipe 25. The first three-way valve 210 will divide the internal space of the first shunt pipe 25 into two left and right separated parts with its own center line as the axis. The bottom end of the first three-way valve 210 is fixedly connected to a second three-way valve 211 for controlling the air flow direction inside the second shunt pipe 26. The bottom end of the second three-way valve 211 is rotatably connected to the inner wall of the second shunt pipe 26. The second three-way valve 211 will also divide the internal space of the second shunt pipe 26 into two left and right parts. The three openings of the first three-way valve 210 are respectively opened at its left end, right end and rear end, while the three openings of the second three-way valve 211 are respectively opened at its left end, right end and front end. The adjusting assembly 3 includes an adjusting shaft 31 for driving the first three-way valve 210 and the second three-way valve 211 to rotate. The bottom end of the adjusting shaft 31 is fixedly connected to the top end of the first three-way valve 210. The adjusting shaft 31 passes through and is rotatably connected to the top of the chassis 1. By rotating the adjusting shaft 31, the first three-way valve 210 and the second three-way valve 211 can be driven to rotate.

[0033] Refer to Figure 1 , Figure 2 , Figure 4, a knob 32 for facilitating the operator to rotate the adjustment shaft 31 is fixedly connected to the top end of the adjustment shaft 31. The front end of the knob 32 penetrates and is slidably connected with a clamping block 33 for fixing the knob 32. An adjustment sleeve 35 for fixing the clamping block 33 is fixedly connected to the top end of the chassis 1. The bottom end of the knob 32 is rotatably connected to the top end of the adjustment sleeve 35. An adjustment groove 36 for accommodating the clamping block 33 is provided on the inner wall of the adjustment sleeve 35. The adjustment groove 36 and the clamping block 33 are adapted to each other. After the clamping block 33 is inserted into the inside of the adjustment groove 36, the clamping block 33 and the knob 32 will be fixed and unable to rotate. An adjustment spring 34 for pushing the clamping block 33 is fixedly connected to the rear end of the clamping block 33. The rear end of the adjustment spring 34 is fixedly connected to the inner wall of the knob 32, and the adjustment spring 34 will always push the clamping block 33 outwards.

[0034] Working principle: After the air blower 21 is started, the air blower 21 will drive the air to flow towards the first shunt pipe 25. The air will pass through the first shunt pipe 25, pass through the first three-way pipe 28 and the second three-way pipe 29, and pass through the first filter pipe 23 and the second filter pipe 24 and be discharged into the room. When the second filter pipe 24 is blocked, the clamping block 33 can be first pressed to drive the clamping block 33 out of the inside of the adjustment groove 36, and then the knob 32 can be rotated clockwise to drive the adjustment shaft 31 to rotate 90°. The adjustment shaft 31 will drive the first three-way valve 210 and the second three-way valve 211 to rotate synchronously. At this time, the front end and the right end openings of the first three-way valve 210 will be respectively communicated with the air blower 21 and the right end space inside the first shunt pipe 25, and the rear end and the left end openings of the second three-way valve 211 will be respectively communicated with the left end space of the second shunt pipe 26 and the air suction fan 22. At this time, the gas input by the air blower 21 will flow along the first shunt pipe 25, pass through the first three-way pipe 28, and finally be discharged into the room along the first filter pipe 23. At the same time, starting the air suction fan 22 can drive the indoor air to enter the second three-way pipe 29 through the second filter pipe 24, then pass through the second shunt pipe 26 and be discharged outwards along the inside of the air suction fan 22. When the air passes through the second filter pipe 24 from the outside to the inside, it will drive the dust adhered to its rear end to move synchronously, and finally complete the cleaning of the second filter pipe 24. When the first filter pipe 23 is blocked, just operate in the reverse direction according to the above method.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fresh air circulation unit for a clean room, comprising a housing (1), characterized in that: A circulation component (2) is installed at the rear end of the chassis (1), and the circulation component (2) comprises a blower (21). The front end of the blower (21) is installed at the rear end of the chassis (1). A suction fan (22) is installed at the rear end of the chassis (1) near the bottom end of the blower (21). A flow divider (25) is installed at the front end of the blower (21), and the outer wall of the flow divider (25) is fixedly connected to the inner wall of the chassis (1). An adjustment component (3) is installed at the top end of the chassis (1).

2. The fresh air circulation unit for a clean room according to claim 1, characterized in that: A second shunt pipe (26) is installed on the inner wall of the chassis (1) near the bottom end of the first shunt pipe (25); the rear end of the second shunt pipe (26) is installed at the front end of the blower (21); the bottom end of the first shunt pipe (25) is fixedly connected to a connecting pipe (27); the bottom end of the connecting pipe (27) is fixedly connected to the top end of the second shunt pipe (26).

3. The fresh air circulation unit for a clean room according to claim 2, characterized in that: A tee pipe 2 (29) is installed at the front end of the diverter pipe 1 (25), a filter pipe 2 (24) is installed at the front end of the tee pipe 2 (29), a tee pipe 1 (28) is installed at the front end of the diverter pipe 1 (25) close to the right end of the tee pipe 2 (29), and a filter pipe 1 (23) is installed at the front end of the tee pipe 1 (28).

4. The fresh air circulation unit for a clean room according to claim 3, characterized in that: The rear end of the second three-way pipe (29) is installed at the front end of the second diverter pipe (26), and the front end of the first three-way pipe (28) is installed at the front end of the second diverter pipe (26) close to the right end.

5. The fresh air circulation unit for a clean room according to claim 2, characterized in that: The top end of the connecting pipe (27) is rotatably connected to a three-way valve 1 (210), the top end of the three-way valve 1 (210) is rotatably connected to the inner wall of the diverter pipe 1 (25), the bottom end of the three-way valve 1 (210) is fixedly connected to a three-way valve 2 (211), the bottom end of the three-way valve 2 (211) is rotatably connected to the inner wall of the diverter pipe 2 (26).

6. The fresh air circulation unit for a clean room according to claim 5, characterized in that: The adjusting assembly (3) comprises an adjusting shaft (31), the bottom end of the adjusting shaft (31) being fixedly connected to the top end of the three-way valve (210), and the adjusting shaft (31) passing through and rotatably connected to the top end of the chassis (1).

7. The fresh air circulation unit for a clean room according to claim 6, characterized in that: The top end of the adjusting shaft (31) is fixedly connected to a knob (32), the front end of the knob (32) penetrates and is slidably connected to a clamping block (33), the top end of the chassis (1) is fixedly connected to an adjusting sleeve (35), the bottom end of the knob (32) is rotatably connected to the top end of the adjusting sleeve (35), the inner wall of the adjusting sleeve (35) is provided with an adjusting groove (36), and the adjusting groove (36) and the clamping block (33) are matched.

8. The fresh air circulation unit for a clean room according to claim 7, characterized in that: The rear end of the clamping block (33) is fixedly connected to an adjusting spring (34), and the rear end of the adjusting spring (34) is fixedly connected to the inner wall of the knob (32).

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