Dustproof device for axial flow fan

Abstract

The dustproof device comprises a fixed box and a dustproof box which are mutually communicated and fixed, an air outlet is formed in the side, away from the dustproof box, of the fixed box, the axial flow fan is arranged on the side, close to the air outlet, of the fixed box, and an air inlet is formed in the side, away from the fixed box, of the dustproof box. A detachable dustproof assembly is arranged on the side, close to the air inlet, of the dustproof box. The dustproof assembly is designed to be detachable and is convenient to clean, replace and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention, in particular to a dust prevention device for an axial flow fan. Background Art

[0002] As a common ventilation equipment, axial flow fans are widely used in industries, agriculture, construction and other fields. However, due to the presence of a large number of dust particles in the environment, axial flow fans often suck these dust particles into the interior during operation, causing wear of the fan blades and internal parts, and even affecting the normal operation of the fan in severe cases. Therefore, how to effectively remove dust particles in the air sucked in by axial flow fans is a technical problem that needs to be solved at present.

[0003] Traditional dust prevention methods mainly include setting a filter at the air inlet of the fan or using other forms of dust collectors. However, these methods have some problems. For example, the filter is difficult to replace and the maintenance cost is high; therefore, a dust prevention device for axial flow fans with a simple structure and easy maintenance is needed. Utility Model Content

[0004] In order to solve the above problem, the utility model provides a dust prevention device for an axial flow fan to solve the problem.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A dustproof device for an axial flow fan comprises a fixed box and a dustproof box which are interconnected and fixed, an air outlet being arranged on a side of the fixed box opposite to the dustproof box, an axial flow fan being arranged on a side of the fixed box close to the air outlet, an air inlet being arranged on a side of the dustproof box away from the fixed box, and a detachable dustproof component being arranged on a side of the dustproof box close to the air inlet.

[0007] It is further configured as follows: a disassembly opening is provided on one side end face of the dustproof box, and a mounting groove is provided on the top wall of the dustproof box above the disassembly opening, and the mounting groove is horizontally opened and configured as an inverted T-shape; a box door is hingedly provided at the disassembly opening, and a door lock is provided on the box door and the dustproof box, and the dustproof component includes a mounting frame with one side open, and a plug-in strip slidingly matched with the mounting groove is fixed on the upper surface of the mounting frame, and three first clamping grooves horizontally arranged and connected to the outside are provided on the inner top wall and the inner bottom wall of the mounting frame, and an electrostatic precipitator, a primary filter and a medium-efficiency filter are respectively clamped in the three first clamping grooves.

[0008] It is further configured as follows: the filter holes of the primary filter and the medium filter are distributed in sequence from large to small.

[0009] It is further configured as follows: the inner top surface and the inner bottom wall of the dustproof box and / or the fixed box are provided with symmetrically arranged guide plates, and the opposite end surfaces of the two guide plates are inclined toward the symmetric planes of the two along one side of the axial flow fan.

[0010] It is further configured as follows: a plurality of groups of linearly distributed circular holes are provided on the bottom surface of the installation frame, a dust outlet is provided on the lower surface of the dustproof box close to the dustproof component, and the dustproof box is detachably provided with a dust collecting box with an open upper surface.

[0011] It is further configured as follows: the dust box is provided with water, the inner bottom wall of the dust box is configured as a funnel shape which gradually slopes downward from the edge to the center, a drain port is provided at the bottom of the dust box, and a valve is provided at the drain port.

[0012] It is further configured as follows: a plurality of uniformly linearly arranged snap-in strips are fixedly connected to the upper surface of the dust collecting box, a plurality of second snap-in grooves that are snap-fitted with the snap-in strips are provided on both sides of the air inlet, and the end surface of the plurality of second snap-in grooves that are away from the fixed box and the lower surface thereof are open; the snap-in strips and the second snap-in grooves are both composed of an upper triangle and a lower isosceles trapezoid, and the length of the base of the isosceles trapezoid is less than the length of its top, and the top side of the triangle can be set to an arc surface.

[0013] It is further configured as follows: hooks are provided on the upper surfaces of the dustproof box and the fixed box.

[0014] It is further configured that: the plug-in strip and the card-connecting strip are both configured as electromagnetic electromagnet strips.

[0015] It is further configured that: a plurality of rubber shock-absorbing seats in a rectangular array are arranged on the bottom wall of one side of the fixed box near the air outlet, and the axial flow fan is arranged on the upper surface of the plurality of rubber shock-absorbing seats

[0016] Compared with the prior art, the beneficial technical effects of the utility model are:

[0017] 1. Through the combination of electrostatic precipitator, primary filter and medium filter, dust particles of different sizes can be filtered gradually to improve the filtration efficiency.

[0018] 2. The dustproof components and dust box are detachable, easy to clean and replace, and easy to maintain.

[0019] 3. Using the electromagnet bar as the plug-in bar can stabilize the mounting frame when the axial flow fan is started to prevent displacement or vibration caused by wind force.

[0020] 4. The design of the guide plate helps to effectively guide the filtered air to the axial flow fan, improving the efficiency of air flow.

[0021] 5. The water inside the dust box can absorb dust and reduce flying dust. At the same time, the setting of drainage holes and valves facilitates regular drainage, which helps to keep it clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the structure after the dustproof component is disassembled;

[0024] Figure 2 For along Figure 1 Schematic diagram from another angle;

[0025] Figure 3 It is a side section view of the utility model;

[0026] Figure 4 This is a schematic diagram of the dustproof component of the utility model;

[0027] Figure 5 This is a schematic diagram of the installation frame of the utility model;

[0028] Figure 6 It is a schematic diagram of the dustproof box of the utility model.

[0029] Figure numerals: 1. fixed box; 2. dustproof box; 3. air outlet; 4. rubber shock-absorbing seat; 5. axial flow fan; 6. air inlet; 7. disassembly port; 8. installation slot; 9. box door; 10. installation frame; 11. plug-in strip; 12. first snap-in slot; 13. guide plate; 14. round hole; 15. dust outlet; 16. dust collecting box; 17. drain outlet; 18. valve; 19. snap-in strip; 20. second snap-in slot; 21. hook; 22. electrostatic precipitator; 23. primary filter; 24. medium filter. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example

[0034] Reference Figure 1-Figure 6 , is a dustproof device for an axial flow fan disclosed in the utility model, comprising a fixed box 1 and a dustproof box 2 which are interconnected and fixed to each other, wherein the fixing method of the fixed box 1 and the dustproof box 2 is welding. In this embodiment, the fixed box 1 is made of stainless steel, and the dustproof box 2 is made of martensitic stainless steel; an air outlet 3 is arranged on the side of the fixed box 1 which is away from the dustproof box 2, and five rubber shock-absorbing seats 4 in a rectangular array are arranged on the bottom wall of the fixed box 1 on one side close to the air outlet 3 thereof, and an axial flow fan 5 is fixedly arranged on the five rubber shock-absorbing seats 4, and the axial flow fan 5 is connected to the air outlet 3;

[0035] An air inlet 6 is provided on the side of the dustproof box 2 facing away from the fixed box 1, and a detachable dustproof component is provided on the side of the dustproof box 2 close to the air inlet 6, which is used to reduce the amount of dust entering the fixed box 1;

[0036] Specifically, a disassembly opening 7 is provided on one end surface of the dustproof box 2, and a mounting groove 8 is provided on the top wall of the dustproof box 2 above the disassembly opening 7, and the mounting groove 8 is horizontally provided and arranged in an inverted T shape; a box door 9 is hingedly provided at the disassembly opening 7, and a door lock is provided on the box door 9 and the dustproof box 2, and the door lock can be a traditional mechanical lock, an electronic lock or a biometric lock, and the design and setting methods of the door lock are all prior art, which will not be described in detail here;

[0037] In this embodiment, the box door 9 is composed of a rectangular plate adapted to the disassembly opening 7 and a T-shaped plate adapted to the installation groove 8;

[0038] The dustproof component includes a mounting frame 10 with one side open, a plug-in strip 11 that is slidably matched with the mounting groove 8 is fixed on the upper surface of the mounting frame 10, three first clamping grooves 12 that are horizontally arranged and connected to the outside are opened on the inner top wall and the inner bottom wall of the mounting frame 10, and an electrostatic precipitator 22, a primary filter 23, and a medium-efficiency filter 24 are respectively clamped in the three first clamping grooves 12. Specifically, the electrostatic precipitator 22, the primary filter 23, and the medium-efficiency filter 24 are arranged in sequence from the outside to the inside, and the electrostatic precipitator 22 performs preliminary electrostatic dust removal on the incoming air. The filter holes of the primary filter 23 and the medium-efficiency filter 24 are distributed in sequence from large to small, so as to gradually filter out dust particles of different sizes;

[0039] Furthermore, symmetrically arranged guide plates 13 are provided on the inner top surface and the inner bottom wall of the dustproof box 2 and / or the fixed box 1, and the opposite end surfaces of the two guide plates 13 are inclined toward the symmetric planes of the two along one side of the axial flow fan 5, and the two guide plates 13 are used to guide the filtered air to the axial flow fan 5;

[0040] In this embodiment, the installation frame 10 and the guide plate 13 are both made of stainless steel, which has good corrosion resistance and service life.

[0041] When installing the installation frame 10, open the box door 9, insert the plug strip 11 into the installation slot 8, and lock the box door 9 with a door lock;

[0042] In this embodiment, the plug-in strip 11 is an electromagnetic electromagnet strip. When the axial flow fan 5 is started, the plug-in strip 11 can be opened to be magnetically fixed to the dustproof box 2, thereby stabilizing the installation frame 10 and preventing displacement or vibration caused by wind.

[0043] In this embodiment, the dustproof component is designed to be detachable. When cleaning, the entire installation frame 10 or the electrostatic precipitator 22, the primary filter 23, and the medium filter 24 can be pulled out from the disassembly port 7 of the fixed box 1 for easy cleaning and replacement.

[0044] Furthermore, the bottom surface of the mounting frame 10 is provided with a plurality of groups of linearly distributed circular holes 14, a dust outlet 15 is provided on the lower surface of the dust box 2 on one side close to the dustproof assembly, and a detachable dust box 16 is provided below the dust box 2. The dust box 16 is used to collect the intercepted dust particles. There is a certain amount of water in the dust box 16, and the dust is adsorbed by the water surface tension to prevent it from flying everywhere. The inner bottom wall of the dust box 16 is set to a funnel shape that gradually tilts downward from the edge to the center. A drain port 17 is provided at the bottom of the dust box 16 to facilitate regular discharge of waste water, and a valve 18 is provided at the drain port 17;

[0045] In this embodiment, the upper surface of the dust box 16 is open, and a plurality of evenly linearly arranged clamping strips 19 are fixedly connected to the upper surface of the dust box 16;

[0046] A plurality of second snap-in grooves 20 are provided on both sides of the air inlet 6 to be snap-fitted with the snap-in strips 19, and the end surface of the plurality of second snap-in grooves 20 facing away from the fixing box 1 and the lower surface thereof are open;

[0047] In this embodiment, the clamping strip 19 and the second clamping groove 20 are both composed of an upper triangle and a lower isosceles trapezoid, and the length of the base of the isosceles trapezoid is smaller than the length of its top. Furthermore, the top of the triangle can be set as an arc surface.

[0048] In this embodiment, the clamping strip 19 is configured as an electromagnetic solenoid strip;

[0049] Furthermore, hooks 21 for hoisting and hanging the entire device are provided on the upper surfaces of the dustproof box 2 and the fixed box 1 .

[0050] The working principle and beneficial effects of the utility model are:

[0051] First, the dust box 16 is fixed to the lower part of the dust box 2 by the clamping strip 19, and then the installation frame 10 is inserted into the dust box 2. The plug-in strip 11 on the top wall of the installation frame 10 and the clamping strip 19 at the lower part of the installation frame 10 support it, and finally the box door 9 is locked;

[0052] When the axial flow fan 5 is working, the card strip 19 and the plug strip 11 can be opened to make it magnetically fixed on the dust box 2. The air enters from the air inlet 6 of the dust box 2, and is filtered by the electrostatic precipitator 22, the primary filter 23, and the medium filter 24 in sequence, and then enters the axial flow fan 5 under the guidance of the guide plate 13, and is finally discharged from the air outlet 3. As time goes by, the dust particles on the electrostatic precipitator 22, the primary filter 23 and the medium filter 24 will increase. The installation frame 10 can be pulled out and removed as a whole, or the electrostatic precipitator 22, the primary filter 23, and the medium filter 24 can be removed separately as needed for cleaning and replacement. At the same time, the water inside the dust box 16 can adsorb dust through the surface tension of water to reduce flying dust. The setting of the drainage hole and the valve 18 is convenient for regular drainage.

[0053] In practical applications, the utility model can be flexibly configured as needed. For example, the number of layers and material of the filter screen can be set according to actual needs; the shape and angle of the guide plate 13 can also be adjusted as needed to meet the dust prevention needs in different occasions.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A dust prevention device for an axial flow fan, characterized in that: The invention comprises a fixed box (1) and a dustproof box (2) which are connected and fixed to each other, wherein an air outlet (3) is arranged on the side of the fixed box (1) which is away from the dustproof box (2), an axial flow fan (5) is arranged on the side of the fixed box (1) close to the air outlet (3), an air inlet (6) is arranged on the side of the dustproof box (2) which is away from the fixed box (1), and a detachable dustproof component is arranged on the side of the dustproof box (2) close to the air inlet (6).

2. The dust prevention device for an axial flow fan according to claim 1, characterized in that: A disassembly opening (7) is provided on one end face of the dustproof box (2); a mounting groove (8) is provided on the inner top wall of the dustproof box (2) above the disassembly opening (7); the mounting groove (8) is horizontally provided and arranged in an inverted T-shape; a box door (9) is hingedly provided at the disassembly opening (7); a door lock is provided on the box door (9) and the dustproof box (2); the dustproof component comprises a mounting frame (10) with one side open; a plug-in strip (11) slidably matched with the mounting groove (8) is fixed on the upper surface of the mounting frame (10); three first clamping grooves (12) are horizontally provided and communicated with the outside world on the inner top wall and the inner bottom wall of the mounting frame (10); an electrostatic precipitator (22), a primary filter (23) and a medium filter (24) are respectively clamped in the three first clamping grooves (12).

3. The dust prevention device for an axial flow fan according to claim 2, characterized in that: The filter holes of the primary filter (23) and the medium filter (24) are distributed in order from large to small.

4. The dust prevention device for an axial flow fan according to claim 3, characterized in that: The inner top surface and the inner bottom wall of the dustproof box (2) and / or the fixed box (1) are provided with symmetrically arranged guide plates (13), and the opposite end surfaces of the two guide plates (13) are inclined along one side of the axial flow fan (5) toward the symmetrical planes of the two.

5. The dust prevention device for an axial flow fan according to claim 4, characterized in that: The bottom surface of the installation frame (10) is provided with a plurality of groups of linearly distributed circular holes (14), a dust outlet (15) is provided on the lower surface of the dustproof box (2) on one side close to the dustproof component, and a detachable dust collecting box (16) is provided on the dustproof box (2), and the upper surface of the dust collecting box (16) is open.

6. The dust prevention device for an axial flow fan according to claim 5, characterized in that: The dust box (16) is provided with water, and the inner bottom wall of the dust box (16) is arranged in a funnel shape which gradually slopes downward from the edge to the center, and a drainage port (17) is provided at the bottom of the dust box (16), and a valve (18) is provided at the drainage port (17).

7. The dust prevention device for an axial flow fan according to claim 6, characterized in that: The upper surface of the dust collecting box (16) is fixedly connected with a plurality of evenly linearly arranged snap-in strips (19), and the two sides of the air inlet (6) are provided with a plurality of second snap-in grooves (20) snap-fitted with the snap-in strips (19), and the end surface of the plurality of second snap-in grooves (20) facing away from the fixed box (1) and the lower surface thereof are openly arranged; the snap-in strip (19) and the second snap-in grooves (20) are both composed of an upper triangle and a lower isosceles trapezoid, and the length of the base of the isosceles trapezoid is less than the length of its top, and the top of the triangle can be arranged as an arc surface.

8. The dust prevention device for an axial flow fan according to claim 7, characterized in that: The upper surfaces of the dustproof box (2) and the fixed box (1) are both provided with hooks (21).

9. The dust prevention device for an axial flow fan according to claim 8, characterized in that: The plug-in strip (11) and the clamping strip (19) are both configured as electromagnetic electromagnet strips.

10. The dust prevention device for an axial flow fan according to claim 9, characterized in that: A plurality of rubber shock-absorbing seats (4) in a rectangular array are arranged on the bottom wall of one side of the fixed box (1) close to the air outlet (3), and an axial flow fan (5) is arranged on the upper surface of the plurality of rubber shock-absorbing seats (4).

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