Anti-blocking FFU (fan filter unit)

Abstract

The utility model discloses an anti-blocking FFU (fan filter unit), which belongs to the technical field of FFU filtration and comprises a machine body, the upper end of the machine body is fixedly connected with a support block, the upper end of the support block is fixedly connected with a bearing frame, an opening of the machine body is fixedly connected with a filter cover, the bearing frame is rotatably connected with a spiral scraping strip, and the spiral scraping strip is fixedly connected with the machine body. A gap of 0.5 mm is reserved between the spiral scraping strip and the filter cover, and the upper end of the spiral scraping strip is fixedly connected with a fan blade. When the machine body works, air is sucked in through the filter cover, airflow acts on the fan blades, the fan blades rotate, and the spiral scraping strips are driven by the fan blades to rotate; when the thickness of large-particle dust accumulated on the filter cover exceeds 0.5 mm, the spiral scraping strip is used for cleaning the dust, the dust on the filter cover is prevented from being accumulated too thick, meanwhile, the filter cover is used for preventing the large-particle dust from entering the machine body, the filter pressure of the filter element in the machine body is reduced, and the filter element is conveniently prevented from being blocked in the replacement period.

Description

Technical Field

[0001] The utility model belongs to the technical field of FFU fan filtering, and in particular relates to an anti-clogging FFU fan filtering unit. Background Art

[0002] The fan filter unit is a ceiling unit with a built-in fan, which is used in turbulent and laminar clean rooms. The overall design of the unit is flexible. According to the design specifications, it can easily match any ceiling frame to achieve cleanliness levels from 1000 to 1.

[0003] Since the fan filter unit only relies on the internal filter element to filter dust, when the content of large dust particles is too high, the internal filter element is easily blocked in advance, causing the filter element of the conventional fan filter unit to be easily blocked during the use cycle.

[0004] To this end, we propose an anti-clogging FFU fan filter unit to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that the filter element of a conventional fan filter unit is easily blocked during the use period, and proposes an anti-blocking FFU fan filter unit.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An anti-clogging FFU fan filter unit includes a body, a support block is fixedly connected to the upper end of the body, a bearing frame is fixedly connected to the upper end of the support block, a filter cover is fixedly connected to the opening of the body, a spiral scraper is rotatably connected to the bearing frame, a 0.5 mm gap is left between the spiral scraper and the filter cover, and a fan blade is fixedly connected to the upper end of the spiral scraper. When the body is working, gas is sucked in through the filter cover, so that the airflow acts on the fan blade, the fan blade rotates, and the spiral scraper is driven to rotate by the fan blade; when the thickness of large dust particles accumulated on the filter cover exceeds 0.5 mm, the spiral scraper is used to clean the dust to prevent the dust on the filter cover from accumulating too thickly, and the filter cover is used to prevent large dust particles from entering the body, reduce the filtering pressure of the filter element in the body, and conveniently avoid the filter element from being blocked during the replacement cycle.

[0008] Preferably, a maintenance pedal is fixedly connected to the upper part of the machine body, and the maintenance pedal is fixedly connected to the support block as a whole. When inspecting, stepping on the maintenance pedal increases the force range of the machine body, reduces local pressure, and facilitates the protection of the machine body.

[0009] Preferably, a handle is fixedly connected to the side of the machine body, so that the carrying device can be conveniently held by hand.

[0010] Preferably, the bearing frame includes a fixing frame and a bearing, wherein the bearing is fixedly connected to the middle of the fixing frame and passes through the fixing frame, so as to conveniently guide the spiral scraper to rotate.

[0011] Preferably, the spiral scraper includes a spiral strip and a rotating shaft, and the spiral strip is fixedly connected to the lower end of the rotating shaft. When the rotating shaft rotates, the spiral strip is driven to rotate by the rotating shaft, so that the spiral strip pushes away the excessively thick dust on the filter cover to the outside, thereby facilitating automatic removal of the excessively thick dust.

[0012] Preferably, the fan blade includes a rotor and a blade, and the blade is fixedly connected to the outer end of the rotor. When the airflow acts on the blade from top to bottom, the rotor is driven to rotate by the blade, and the spiral scraper is driven to rotate by the rotor, so as to provide rotation energy for the spiral scraper.

[0013] Preferably, the filter cover includes a filter cloth and an air guide scoop, and the filter cloth is fixedly connected to the upper part of the air guide scoop. The filter cloth is used to block large dust particles outside, so that large dust particles accumulate on the filter cloth, which is convenient for preventing large dust particles from entering the machine body, thereby relieving the filtering pressure of the filter element.

[0014] In summary, the technical effects and advantages of the utility model are as follows:

[0015] 1. When the machine is working, gas is inhaled through the filter cover, so that the airflow acts on the fan blades, causing the fan blades to rotate, and the spiral scraper is driven to rotate through the fan blades; when the thickness of large particles of dust accumulated on the filter cover exceeds 0.5 mm, the spiral scraper is used to clean the dust to prevent the dust on the filter cover from accumulating too thickly. At the same time, the filter cover is used to prevent large particles of dust from entering the machine body, reducing the filtering pressure of the filter element in the machine body, and conveniently avoiding the filter element from being blocked during the replacement cycle.

[0016] 2. When the shaft rotates, the spiral strip is driven to rotate through the shaft, so that the spiral strip pushes the excessively thick dust on the filter cover outward, thereby facilitating automatic removal of the excessively thick dust.

[0017] 3. When the airflow acts on the blades from top to bottom, the blades drive the rotating block to rotate, and the rotating block drives the spiral scraper to rotate, which is convenient for providing rotational energy for the spiral scraper.

[0018] 4. Use filter cloth to block large dust particles outside, so that large dust particles accumulate on the filter cloth, which is convenient for preventing large dust particles from entering the machine body, thereby relieving the filtering pressure of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the bearing frame structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the spiral scraper structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the fan blade structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the filter cover structure of the utility model.

[0024] In the figure: 1, machine body; 2, bearing frame; 3, spiral scraper; 4, fan blade; 5, filter cover; 6, handle; 7, maintenance pedal; 8, support block; 21, fixing frame; 22, bearing; 31, spiral strip; 32, rotating shaft; 41, rotating block; 42, blade; 51, filter cloth; 52, air guide bucket. DETAILED DESCRIPTION

[0025] The technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, rather than all of the embodiments.

[0026] Reference Figure 1 A blockage-proof FFU fan filter unit comprises a body 1, a support block 8 is fixedly connected to the upper end of the body 1, a bearing frame 2 is fixedly connected to the upper end of the support block 8, a filter cover 5 is fixedly connected to the opening of the body 1, a spiral scraper 3 is rotatably connected to the bearing frame 2, a 0.5 mm gap is left between the spiral scraper 3 and the filter cover 5, and a fan blade 4 is fixedly connected to the upper end of the spiral scraper 3.

[0027] Reference Figure 1 A maintenance pedal 7 is fixedly connected to the upper part of the machine body 1, and the maintenance pedal 7 is fixedly connected to the support block 8 as a whole. During maintenance, the foot is stepped on the maintenance pedal 7 to increase the force range of the machine body 1.

[0028] Reference Figure 1 A handle 6 is fixedly connected to the side of the machine body 1. The machine body 1 is carried by holding the handle 6.

[0029] Reference Figure 1 and 2 The bearing frame 2 includes a fixing frame 21 and a bearing 22. The lower end of the fixing frame 21 is fixedly connected to the upper end of the support block 8. The bearing 22 is fixedly connected to the middle of the fixing frame 21, and the bearing 22 passes through the fixing frame 21. The bearing 22 is used to guide the spiral scraper 3 to rotate.

[0030] Reference Figure 1 , 23, the spiral scraper 3 includes a spiral strip 31 and a rotating shaft 32, the rotating shaft 32 is rotatably connected in the bearing 22, and the spiral strip 31 is fixedly connected to the lower end of the rotating shaft 32. When the rotating shaft 32 rotates, the spiral strip 31 is driven to rotate by the rotating shaft 32, so that the spiral strip 31 pushes away the excessively thick dust on the filter cover 5 to the outside.

[0031] Reference Figure 1 , 3 4, the fan blade 4 includes a rotating block 41 and a blade 42, the rotating block 41 is fixedly connected to the upper end of the rotating shaft 32, and the blade 42 is fixedly connected to the outer end of the rotating block 41. When the airflow acts on the blade 42 from top to bottom, the rotating block 41 is driven to rotate by the blade 42, and the spiral scraper 3 is driven to rotate by the rotating block 41.

[0032] Reference Figure 1 , 3 5, the filter cover 5 includes a filter cloth 51 and an air guide 52, the air guide 52 is fixedly connected to the air inlet of the body 1, a 0.5 mm gap is left between the filter cloth 51 and the spiral strip 31, and the filter cloth 51 is fixedly connected to the upper part of the air guide 52. The filter cloth 51 is used to block large particles of dust from the outside, so that the large particles of dust are accumulated on the filter cloth 51.

[0033] Working principle: when the machine body 1 is working, gas is sucked in through the filter cover 5, so that the airflow acts on the fan blades 4, causing the fan blades 4 to rotate, and the spiral scraper 3 is driven to rotate through the fan blades 4; when the thickness of large particles of dust accumulated on the filter cover 5 exceeds 0.5 mm, the spiral scraper 3 is used to clean the dust to prevent the dust on the filter cover 5 from accumulating too thickly. At the same time, the filter cover 5 is used to prevent large particles of dust from entering the machine body 1, thereby reducing the filtering pressure of the filter element in the machine body 1, and avoiding the filter element from being blocked during the replacement cycle.

[0034] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

[0035] The description briefly mentions the application direction of the utility model for the prior art that is known to those skilled in the art and has not been changed, and combines it with the utility model to form a complete technology; the description avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.

Claims

1. An anti-clogging FFU fan filter unit, comprising a body (1), characterized in that: The upper end of the machine body (1) is fixedly connected to a support block (8), the upper end of the support block (8) is fixedly connected to a bearing frame (2), the opening of the machine body (1) is fixedly connected to a filter cover (5), the bearing frame (2) is rotatably connected to a spiral scraper (3), a gap of 0.5 mm is left between the spiral scraper (3) and the filter cover (5), and the upper end of the spiral scraper (3) is fixedly connected to a fan blade (4).

2. The anti-clogging FFU fan filter unit according to claim 1 is characterized in that: A maintenance pedal (7) is fixedly connected to the upper part of the machine body (1), and the maintenance pedal (7) is fixedly connected to the support block (8) as a whole.

3. The anti-clogging FFU fan filter unit according to claim 1 is characterized in that: A handle (6) is fixedly connected to the side of the machine body (1).

4. The anti-clogging FFU fan filter unit according to claim 1 is characterized in that: The bearing frame (2) comprises a fixing frame (21) and a bearing (22); the bearing (22) is fixedly connected to the middle part of the fixing frame (21), and the bearing (22) passes through the fixing frame (21).

5. The anti-clogging FFU fan filter unit according to claim 1 is characterized in that: The spiral scraper strip (3) comprises a spiral strip (31) and a rotating shaft (32), and the spiral strip (31) is fixedly connected to the lower end of the rotating shaft (32).

6. The anti-clogging FFU fan filter unit according to claim 1, characterized in that: The fan blade (4) comprises a rotating block (41) and a blade (42), wherein the blade (42) is fixedly connected to the outer end of the rotating block (41).

7. The anti-clogging FFU fan filter unit according to claim 1, characterized in that: The filter cover (5) comprises a filter cloth (51) and an air guide scoop (52), wherein the filter cloth (51) is fixedly connected to the upper part of the air guide scoop (52).

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