Oil fume purification centrifugal general fan

Abstract

The utility model provides a kind of oil fume purification centrifugal general fan, effectively solve the problem that centrifugal fan oil purification structure is not easy to clean;Including volute, volute is provided with wind wheel inside, volute is provided with air inlet and air outlet, air inlet outside is equipped with fixed ring, fixed ring inside is detachably connected with fixed cylinder, fixed cylinder inside is detachably connected with movable cylinder, oil absorption cotton is arranged between fixed cylinder and movable cylinder, a plurality of through-holes are formed in fixed cylinder and movable cylinder;Fixed cylinder end is equipped with the limiting block cooperation with fixed ring, limiting block is cooperated with the edge of fixed ring, and fixed cylinder is fixed in the inside of fixed ring;The fixed column is arranged in the bottom of fixed cylinder, the perforation is formed in the bottom of movable cylinder, and the fixed column is fixed in the inside of fixed cylinder after passing through the perforation using locking block;The utility model is simple and ingenious, convenient to use, detachable oil absorption mechanism is arranged at the air inlet of fan, oil fume is purified and oil absorption, and it is convenient to replace and clean, maintain the purification efficiency of oil fume.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, and in particular to a general-purpose centrifugal fan for oil fume purification. Background Technology

[0002] For heavy oil environments such as kitchens, when using centrifugal fans for smoke extraction, it is also necessary to filter and purify the oil fumes to avoid direct emission and environmental pollution. Some existing centrifugal fans have built-in oil purification structures, but these are located inside the equipment and are not easy to disassemble and clean when there is too much oil, making them inconvenient to use. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a universal centrifugal fan for oil fume purification, which effectively solves the problem of the difficulty in cleaning the oil purification structure of centrifugal fans.

[0004] The technical solution to the technical problem is: a centrifugal general-purpose fan for oil fume purification, including a volute, a fan wheel is installed inside the volute, an air inlet and an air outlet are provided on the volute, a fixed ring is provided on the outside of the air inlet, a fixed cylinder is detachably connected inside the fixed ring, a movable cylinder is detachably connected inside the fixed cylinder, oil-absorbing cotton is provided between the fixed cylinder and the movable cylinder, and multiple through holes are provided on both the fixed cylinder and the movable cylinder.

[0005] The end of the fixed cylinder is provided with a limiting block that cooperates with the fixed ring. The limiting block cooperates with the edge of the fixed ring to fix the fixed cylinder inside the fixed ring.

[0006] The fixed cylinder has a fixed post at the bottom, and the movable cylinder has a through hole at the bottom. After the fixed post passes through the through hole, a locking block is used to fix the movable cylinder inside the fixed cylinder.

[0007] Preferably, the back of the volute is equipped with a motor that drives the impeller.

[0008] Preferably, the fixed cylinder has multiple sliding grooves at its end, and a sliding rod is provided in each groove. A limiting block is slidably mounted on the sliding rod, and a spring is provided on the sliding rod. The spring pushes the limiting block inward.

[0009] Preferably, the limiting block and the side closest to the fixing ring have a wedge-shaped surface.

[0010] Preferably, the fixing post is a threaded post with multiple vertical grooves, and the locking block is an annular block with multiple protrusions extending inward, the protrusions being threaded.

[0011] This utility model has a simple and ingenious structure and is easy to use. It has a detachable oil suction mechanism at the air inlet of the fan to purify and absorb oil fumes, and it is easy to replace and clean it to maintain the purification efficiency of oil fumes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a universal centrifugal fan for oil fume purification according to this utility model.

[0013] Figure 2 This is a cross-sectional schematic diagram of a centrifugal general-purpose fan for oil fume purification according to this utility model.

[0014] Figure 3 This is a schematic diagram of the casing of a centrifugal general-purpose fan for oil fume purification according to this utility model.

[0015] Figure 4 This is a schematic diagram of the fixed cylinder in a centrifugal general-purpose fan for oil fume purification according to this utility model. Figure 1 .

[0016] Figure 5 This is a schematic diagram of the fixed cylinder in a centrifugal general-purpose fan for oil fume purification according to this utility model. Figure 2 .

[0017] Figure 6 This is a schematic diagram of the moving cylinder in a centrifugal general-purpose fan for oil fume purification according to this utility model.

[0018] Figure 7 This is a schematic diagram of the locking block in a centrifugal general-purpose fan for oil fume purification according to this utility model. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Depend on Figures 1 to 7 It is known that a centrifugal general-purpose fan for oil fume purification includes a volute 1, a fan wheel 2 is installed inside the volute 1, a motor 14 for driving the fan wheel 2 is installed on the back of the volute 1, an air inlet 3 and an air outlet 4 are provided on the volute 1, a fixing ring 5 is provided on the outside of the air inlet 3, a fixing cylinder 6 is detachably connected inside the fixing ring 5, a movable cylinder 7 is detachably connected inside the fixing cylinder 6, an oil-absorbing cotton 8 is provided between the fixing cylinder 6 and the movable cylinder 7, and multiple through holes 9 are provided on both the fixing cylinder 6 and the movable cylinder 7.

[0021] The end of the fixed cylinder 6 is provided with a limiting block 10 that cooperates with the fixed ring 5. The limiting block 10 cooperates with the edge of the fixed ring 5 to fix the fixed cylinder 6 inside the fixed ring 5.

[0022] The fixed cylinder 6 has a fixed post 11 at the bottom, and the movable cylinder 7 has a through hole 12 at the bottom. After the fixed post 11 passes through the through hole 12, the movable cylinder 7 is fixed inside the fixed cylinder 6 by the locking block 13.

[0023] In practical use, this utility model

[0024] The fan is fixed in a heavy oil environment such as a kitchen. When the fan is started, the motor 14 drives the impeller 2 to rotate. The oily air is drawn into the volute 1 through the air inlet 3. When it passes through the oil-absorbing cotton 8 between the movable cylinder 7 and the fixed cylinder 6, the oily fumes are absorbed and filtered. The purified gas is discharged from the air outlet 4.

[0025] Place oil-absorbing cotton 8 between the fixed cylinder 6 and the movable cylinder 7, then assemble the fixed cylinder 6 and the movable cylinder 7, and then connect the fixed cylinder 6 to the volute 1. Use the limiting block 10 to quickly complete the fixation. When replacing the oil-absorbing cotton 8, only the movable cylinder 7 needs to be removed. The fixed cylinder 6 does not need to be removed together, which can save disassembly time and quickly complete the operation of replacing the oil-absorbing cotton 8.

[0026] The movable cylinder 7 and the fixed cylinder 6 are quickly fixed and separated through the cooperation of the fixed post 11 and the locking block 13. The oil-absorbing cotton 8 is put on the outside of the movable cylinder 7 and is removed together with the movable cylinder 7.

[0027] The fixed cylinder 6 has multiple sliding grooves 15 at its end, and a sliding rod 16 is provided in the sliding groove 15. The limiting block 10 is slidably mounted on the sliding rod 16. A spring 17 is provided on the sliding rod 16. The spring 17 pushes the limiting block 10 inward. The limiting block 10 and the side close to the fixed ring 5 are wedge-shaped surfaces.

[0028] The limiting block 10 is pushed by the spring 17 to cooperate and fix with the fixing ring 5. When removing the fixing cylinder 6, a handle is provided on the outside of the limiting block 10. Pulling the limiting block 10 outward will cause foreign objects to be placed in the slide groove 15 to jam the limiting block 10 so that it cannot be reset. After all the limiting blocks 10 are pulled out, the fixing cylinder 6 is separated from the volute 1, and the separation is completed.

[0029] The side of the limiting block 10 that contacts the fixing ring 5 is a wedge-shaped surface, which, under the action of the spring 17, allows the fixing cylinder 6 to be better fixed to the outside of the volute 1.

[0030] The fixed post 11 is a threaded post with multiple vertical grooves 18. The locking block 13 is an annular block with multiple protrusions 19 extending inward. The protrusions 19 are threaded. The movable cylinder 7 and the fixed cylinder 6 are fixed and separated by the cooperation of the locking block 13 and the fixed post 11. The specific operation is as follows: align the protrusions 19 with the vertical grooves 18, move the locking block 13 downward and push it inward to make the movable cylinder 7 and the fixed cylinder 6 fit tightly. Then rotate the locking block 13. The thread on the protrusions 19 of the locking block 13 is threadedly connected to the fixed post 11 and further pushes the movable cylinder 7 inward, so that the movable cylinder 7 and the fixed cylinder 6 are fixed. When separating, rotate the locking block 13 in the opposite direction so that the protrusions 19 are aligned with the vertical grooves 18. At this time, there is no threaded connection between the locking block 13 and the fixed post 11, so that they can be separated quickly.

[0031] The bottom of the movable cylinder 7 is equipped with a rubber pad, which forms a seal after contacting the fixed cylinder 6, preventing the oily fumes that have not been absorbed by the oil-absorbing cotton 8 from being discharged.

[0032] Compared with the prior art, this utility model has the following advantages: a detachable oil suction mechanism is provided on the outside of the volute, which can be adapted to the centrifugal fan, improving its versatility. It can be directly applied to existing centrifugal fans without modifying the fan structure itself, greatly improving convenience. The oil suction mechanism includes a separable movable cylinder and a fixed cylinder, which can quickly replace the oil suction cotton. When cleaning the entire oil suction mechanism, it can also be quickly removed for cleaning, greatly improving maintenance efficiency and achieving the purpose of purifying oil fumes.

Claims

1. A centrifugal universal fan for oil fume purification, characterized in that, Includes a volute (1), a fan wheel (2) is provided inside the volute (1), an air inlet (3) and an air outlet (4) are provided on the volute (1), a fixing ring (5) is provided on the outside of the air inlet (3), a fixing cylinder (6) is detachably connected inside the fixing ring (5), a movable cylinder (7) is detachably connected inside the fixing cylinder (6), an oil-absorbing cotton (8) is provided between the fixing cylinder (6) and the movable cylinder (7), and multiple through holes (9) are provided on both the fixing cylinder (6) and the movable cylinder (7); The end of the fixed cylinder (6) is provided with a limiting block (10) that cooperates with the fixed ring (5). The limiting block (10) cooperates with the edge of the fixed ring (5) to fix the fixed cylinder (6) inside the fixed ring (5); The bottom of the fixed cylinder (6) is provided with a fixed post (11), and the bottom of the movable cylinder (7) is provided with a through hole (12). After the fixed post (11) passes through the through hole (12), the movable cylinder (7) is fixed inside the fixed cylinder (6) by a locking block (13).

2. The universal centrifugal fan for oil fume purification according to claim 1, characterized in that, The back of the volute (1) is equipped with a motor (14) that drives the impeller (2).

3. The universal centrifugal fan for oil fume purification according to claim 1, characterized in that, The fixed cylinder (6) has multiple sliding grooves (15) at its end. A sliding rod (16) is provided in the sliding groove (15). A limiting block (10) is slidably disposed on the sliding rod (16). A spring (17) is provided on the sliding rod (16). The spring (17) pushes the limiting block (10) inward.

4. The universal centrifugal fan for oil fume purification according to claim 3, characterized in that, The limiting block (10) and the fixing ring (5) are close to each other with a wedge-shaped surface.

5. A centrifugal universal fan for oil fume purification according to claim 3, characterized in that, The fixing post (11) is a threaded post with multiple vertical grooves (18), and the locking block (13) is an annular block with multiple protrusions (19) extending inward, and the protrusions (19) are threaded.

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