Induced draft fan device convenient to filter

Abstract

The utility model discloses an induced draft fan device convenient to filter, which relates to the technical field of induced draft fan filtering and comprises an induced draft device, an air inlet main body is arranged in the middle of the top end of the induced draft device, a filter element is arranged in the air inlet main body, and an induced draft accumulation bottom plate is arranged at the bottom end of the filter element. The bottom end of the induced air stacking bottom plate is arranged in the middle of the top end of the induced air device. The filtering function can be provided for the induced draft fan at the air inlet through the filter cartridges of different grades, impurities are prevented from being accumulated in the inlet and outlet pipelines and the inner space of the induced draft fan, the air inlet area and effect of the induced draft fan are not affected, the impurities of different particle sizes are filtered in a graded mode through the three filter cartridges of different grades, and the filtering effect is improved. The overall filtering efficiency of impurities in gas is effectively improved, the filter cartridges at all stages can rotate relatively through the planetary rotating assembly, the impurities are not prone to accumulation at the filter holes, and the impurities are effectively prevented from blocking the filter holes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fan filter technology, specifically to a fan device convenient to filter. BACKGROUND

[0002] The fan device is a combination of equipment for conveying gas, and its main function is to extract gas from one space and convey it to other places, which plays a key role in many industrial and civil fields. In the industrial boiler system, it can extract the flue gas generated by combustion, maintain the negative pressure environment in the boiler, and ensure the normal combustion of fuel. In the building ventilation system, it can extract the dirty air in the room, such as kitchen fume and toilet odor, and also can be used to convey fresh air to the room to improve air quality.

[0003] The existing technology has the following problems:

[0004] When the fan is working, the gas flows along the axial direction of the impeller, and under the design action of the impeller, the airflow will gather in the middle. When the gas contains a large amount of impurities, these impurities will accumulate in the inlet and outlet pipelines and the internal space of the fan. If the accumulation is too much at the inlet, it will reduce the gas inlet area and thus reduce the gas flow into the fan, resulting in a decrease in air volume. In addition, while filtering the gas, the impurities will block the filter components under the negative pressure, resulting in low filtering efficiency and short service life of the filter components. UTILITY MODEL CONTENTS

[0005] The utility model provides a fan device convenient to filter to solve the problems raised in the above background.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A fan device convenient to filter, comprising a fan device, a fan device top end middle part is provided with air inlet main part, the air inlet main part inside is provided with filter core, the filter core bottom is provided with fan accumulation bottom plate, the fan accumulation bottom plate bottom is arranged in the fan device top end middle part, the air inlet main part inner side and filter core inner side are communicated, the filter core inner side and fan accumulation bottom plate are communicated, the fan accumulation bottom plate inner side and fan device are communicated, the fan accumulation bottom plate bottom is provided with drive motor.

[0008] The further improvement of the utility model technical scheme is that the air inlet main part includes a main body shell, the main body shell bottom is fixedly connected to the top end of the fan device, the main body shell top is fixedly connected with the positioning guardrail, the main body shell inner side is provided with fan wheel, and the fan wheel bottom is fixedly connected to the outer surface of the fan accumulation bottom plate.

[0009] The further improvement in the utility model technical scheme lies in that the diameters of the plurality of filter holes are sequentially reduced from outside to inside according to the inside-outside relationship of the first filter cylinder, the second filter cylinder and the third filter cylinder, and the centers of the first filter cylinder, the second filter cylinder and the third filter cylinder are on the same straight line.

[0010] The further improvement in the utility model technical scheme lies in that the diameters of the plurality of filter holes are sequentially reduced from outside to inside according to the inside-outside relationship of the first filter cylinder, the second filter cylinder and the third filter cylinder, and the centers of the first filter cylinder, the second filter cylinder and the third filter cylinder are on the same straight line.

[0011] The further improvement in the utility model technical scheme lies in that the planetary rotation assembly comprises a fixed shaft, the fixed shaft is fixedly connected to the middle part of the bottom end of the positioning guardrail at the top end, the fixed shaft is rotatably connected to the middle part of the top end of the third filter cylinder, positioning guide gears are fixedly connected to the one side of the top end of the second filter cylinder and the top end of the third filter cylinder on the outer surface of the fixed shaft, the outer surface of the positioning guide gears is meshingly connected with planetary rotation gears, the top end of the planetary rotation gears is rotatably connected with a positioning connecting column, the top end of the positioning connecting column is fixedly connected to the top end of the inner side of the first filter cylinder, the top end of the positioning connecting column is fixedly connected to the top end of the inner side of the second filter cylinder, the outer side of the planetary rotation gears is meshingly connected with a driven rotation gear ring, the bottom end of the driven rotation gear ring is fixedly connected to the outer side of the top end of the second filter cylinder, and the bottom end of the driven rotation gear ring is fixedly connected to the outer side of the top end of the third filter cylinder.

[0012] The further improvement in the utility model technical scheme lies in that the fixed shaft and the center of the first filter cylinder are on the same straight line, and the outer surface of the fixed shaft is rotatably connected with the first filter cylinder and the second filter cylinder.

[0013] The further improvement of the technical scheme of the utility model lies in that the air induction accumulation bottom plate comprises a bottom plate main body, the outer surface of the bottom plate main body is fixedly connected to the inner side of the bottom end of the air induction wheel, the outer side of the top end of the bottom plate main body is fixedly connected to the bottom end of the first-stage filter cylinder, a driving motor is arranged at the bottom end of the bottom plate main body, an air outlet is formed in the middle of the top end of the bottom plate main body, the diameter of the air outlet is the same as the inner diameter of the third-stage filter cylinder, the bottom end of the third-stage filter cylinder is rotatably connected to the outer side of the air outlet of the top end of the bottom plate main body, the bottom end of the second-stage filter cylinder is rotatably connected to the top end of the bottom plate main body, a plurality of inner side negative pressure ports are formed in the bottom plate main body between the third-stage filter cylinder and the second-stage filter cylinder, the bottom end of the inner side negative pressure port is communicated with the air outlet, the top end of the inner side negative pressure port is communicated with the inner side of the second-stage filter cylinder, a plurality of outer side negative pressure ports are formed in the bottom plate main body between the second-stage filter cylinder and the first-stage filter cylinder, the bottom end of the outer side negative pressure port is communicated with the air outlet, the top end of the outer side negative pressure port is communicated with the inner side of the first-stage filter cylinder, and the top end of the inner side negative pressure port and the top end of the outer side negative pressure port are fixedly connected with fine sieve filter plates.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] 1. The air induction machine device convenient to filter can provide filtering function for the air induction machine at the air inlet through different levels of filter cylinders, prevent impurities from accumulating in the import and export pipeline and the internal space of the air induction machine, affect the air induction area and effect of the air induction machine, and can filter impurities of different particle sizes through three different levels of filter cylinders, effectively improve the overall filtering efficiency of impurities in the gas, reduce the possibility of impurities entering the inside of the air induction machine, prolong the overall service life of the filtering component, and reduce the cost and maintenance workload of frequent replacement of the filtering component.

[0016] 2. The air induction machine device convenient to filter can make the filter cylinders relatively rotate through the planetary rotation assembly, the rotation of the filter cylinder can prevent impurities from accumulating at the filter hole, effectively prevent the filter hole from being blocked by impurities, ensure that the air inlet area is not affected, thereby stabilizing the gas flow entering the air induction machine, ensuring stable air volume, and under the joint action of the rotation of the filter cylinder and the negative pressure port, the impurities are more easily shaken off and moved to the edge of the air induction accumulation bottom plate, finally stay and accumulate at the bottom of the filter cylinder, reduce the adhesion of impurities on the filtering component, further improve the filtering efficiency, and also reduce the damage of impurities to the filtering component, prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2It is the structure schematic view of the air inlet main body inside the utility model;

[0019] Figure 3 It is the structure schematic view of the filter element of the utility model;

[0020] Figure 4 It is the structure schematic view of the planetary rotation assembly of the utility model;

[0021] Figure 5 It is the structure schematic view of the air inlet accumulation bottom plate of the utility model.

[0022] In the drawing: 1, filter element;11, primary filter cylinder;12, planetary rotation assembly;121, fixed shaft;122, positioning guide gear;123, positioning connecting column;124, planetary rotation gear;125, driven rotation gear ring;13, secondary filter cylinder;14, tertiary filter cylinder;15, filter hole;2, air inlet main body;21, positioning guardrail;22, main body shell;23, air inlet wheel;3, air inlet device;4, air inlet accumulation bottom plate;41, air outlet;42, bottom plate main body;43, inner negative pressure port;44, outer negative pressure port;45, fine sieve filter plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments:

[0024] As Figures 1-5 Indicated, the utility model provides a kind of air inlet fan device of being convenient for filtering, including air inlet device 3, air inlet device 3 top middle part is provided with air inlet main body 2, air inlet main body 2 inside is provided with filter element 1, filter element 1 bottom end is provided with air inlet accumulation bottom plate 4, air inlet accumulation bottom plate 4 bottom end is set in air inlet device 3 top middle part, air inlet main body 2 inner side is communicated with filter element 1 inner side, filter element 1 inner side is communicated with air inlet accumulation bottom plate 4, air inlet accumulation bottom plate 4 inner side is communicated with air inlet device 3, air inlet accumulation bottom plate 4 bottom end is provided with driving motor.

[0025] Air inlet device 3 is mainly responsible for generating suction and then conveying gas after being processed by air inlet fan to specified discharge position or subsequent equipment, air inlet main body 2 provides a transition and pretreatment space for gas entering air inlet fan device, filter element 1 directly filters the gas entering air inlet fan, effectively removes impurity particles in gas, prevents impurities from entering the interior of air inlet fan to cause damage to equipment, air inlet accumulation bottom plate 4 plays the role of supporting filter element 1 on one hand, and plays the role of transition and guidance in the process of gas flow on the other hand.

[0026] Among them, air inlet device 3 is prior art, which is not explained here.

[0027] AsFigure 1 As shown in the utility model provides a kind of air induction fan device technical scheme of convenient filtration: preferably, air inlet main body 2 includes main body shell 22, main body shell 22 bottom end is fixedly connected to the top end of air induction device 3, main body shell 22 top end is fixedly connected with positioning guardrail 21, main body shell 22 inner side is provided with air induction wheel 23, and air induction wheel 23 bottom end is fixedly connected to the outer surface of air induction accumulation bottom plate 4.

[0028] As Figure 1 As shown in the utility model provides a kind of air induction fan device technical scheme of convenient filtration: preferably, filter core 1 includes primary filter cylinder 11, and primary filter cylinder 11 bottom end is fixedly connected to the top end outer side of air induction accumulation bottom plate 4, and primary filter cylinder 11 inner side is provided with secondary filter cylinder 13, and secondary filter cylinder 13 bottom end is rotatably connected to the top end of air induction accumulation bottom plate 4, and secondary filter cylinder 13 inner side is provided with tertiary filter cylinder 14, and tertiary filter cylinder 14 bottom end is rotatably connected to the top end of air induction accumulation bottom plate 4 middle part, and tertiary filter cylinder 14 top end is rotatably connected with the inner side of primary filter cylinder 11, and primary filter cylinder 11, secondary filter cylinder 13 and tertiary filter cylinder 14 outer surface are all provided with a plurality of filter holes 15 of inside and outside through.

[0029] As Figure 1 As shown in the utility model provides a kind of air induction fan device technical scheme of convenient filtration: preferably, the diameter of a plurality of filter holes 15 is gradually reduced from outside to inside according to the inside and outside relationship of primary filter cylinder 11, secondary filter cylinder 13 and tertiary filter cylinder 14, and the center of primary filter cylinder 11, secondary filter cylinder 13 and tertiary filter cylinder 14 is on the same straight line.

[0030] Primary, secondary and tertiary filter cylinders are nested from outside to inside, and the center is on the same straight line, forming an efficient grading filtration system, gas passes through each filter cylinder in turn, and each filter cylinder bears the filtration task of impurities of a specific particle size range, and each level cooperates and works together, gradually improves filtration accuracy, effectively removes various impurities in gas, ensures that air induction fan device can operate stably under different working conditions, and prolongs the maintenance period of entire filter core 1 and air induction fan device.

[0031] As Figure 1The utility model provides a kind of air fan device of convenient filtration technical scheme: preferably, planetary rotation component 12 includes fixed shaft 121, fixed shaft 121 top end is fixedly connected in the middle part of the bottom of positioning guardrail 21, fixed shaft 121 is rotatably connected in the middle part of the top of three-stage filter cylinder 14, fixed shaft 121 outer surface is close to the top of two-stage filter cylinder 13 and the top of three-stage filter cylinder 14 one side and is fixedly connected with positioning guide gear 122, positioning guide gear 122 outer surface is engaged with and is connected with planetary rotation gear 124, planetary rotation gear 124 top end is rotatably connected with positioning connecting column 123, upper positioning connecting column 123 top end is fixedly connected in the top of the inner side of primary filter cylinder 11, lower positioning connecting column 123 top end is fixedly connected in the top of the inner side of two-stage filter cylinder 13, planetary rotation gear 124 outer side is engaged with and is connected with driven rotary gear ring 125, upper driven rotary gear ring 125 bottom end is fixedly connected in the top outer side of two-stage filter cylinder 13, lower driven rotary gear ring 125 bottom end is fixedly connected in the top outer side of three-stage filter cylinder 14.

[0032] As Figure 1 The utility model provides a kind of air fan device of convenient filtration technical scheme: preferably, fixed shaft 121 and the center of primary filter cylinder 11 are in the same straight line, and fixed shaft 121 outer surface is rotatably connected with primary filter cylinder 11, two-stage filter cylinder 13.

[0033] Because the bottom of primary filter cylinder 11 is fixedly connected in the top of air-entraining accumulation bottom plate 4, so when air-entraining accumulation bottom plate 4 is driven by motor, it will drive primary filter cylinder 11 to rotate synchronously, fixed shaft 121 is fixed in the bottom of positioning guardrail 21, so in the process of rotating primary filter cylinder 11 and air-entraining accumulation bottom plate 4, positioning guide gear 122 rotatably connected with the outer surface of fixed shaft 121 will not be driven to rotate, and the rotation of primary filter cylinder 11 will drive connected positioning connecting column 123 to rotate around fixed shaft 121, and the movement of positioning connecting column 123 will cause planetary rotation gear 124 to rotate around positioning guide gear 122 by engagement connection, and the rotation of planetary rotation gear 124 will also drive driven rotary gear ring 125 to rotate around fixed shaft 121, so as to drive two-stage filter cylinder 13 or three-stage filter cylinder 14 connected therewith to rotate, since planetary rotation component 12 is rotated by planetary gear set, it will cause the differential between driven rotary gear ring 125 and positioning connecting column 123, so as to make the filtration effect more sufficient, and two-stage filter cylinder 13 connected with driven rotary gear ring 125 is rotated by the same principle to drive three-stage filter cylinder 14 to rotate.

[0034] As Figure 1The utility model provides a kind of air induction fan device technical scheme of convenient filtration, preferably, air induction accumulation bottom plate 4 includes bottom plate main body 42, bottom plate main body 42 outer surface is fixedly connected to the bottom end inboard of air induction wheel 23, bottom plate main body 42 top end outside is fixedly connected to the bottom end of primary filter cylinder 11, bottom plate main body 42 bottom end is provided with driving motor, bottom plate main body 42 top end middle part is equipped with air outlet 41, air outlet 41 diameter is same with the inner diameter of tertiary filter cylinder 14, tertiary filter cylinder 14 bottom end is rotationally connected to the top end of bottom plate main body 42 on the outside of air outlet 41, secondary filter cylinder 13 bottom end is rotationally connected to the top end of bottom plate main body 42, bottom plate main body 42 inside between tertiary filter cylinder 14 and secondary filter cylinder 13 is equipped with several inboard negative pressure ports 43, inboard negative pressure port 43 bottom end is communicated with air outlet 41, inboard negative pressure port 43 top end is communicated with the inboard of secondary filter cylinder 13, bottom plate main body 42 inside between secondary filter cylinder 13 and primary filter cylinder 11 is equipped with several outboard negative pressure ports 44, outboard negative pressure port 44 bottom end is communicated with air outlet 41, outboard negative pressure port 44 top end is communicated with the inboard of primary filter cylinder 11, inboard negative pressure port 43 and outboard negative pressure port 44 top end are all fixedly connected with fine sieve filter plate 45.

[0035] Negative pressure is inhaled into filter core 1 by air outlet 41 and is filtered, and the impurities in the outside are filtered by each filter cylinder and are retained inside, then the impurities retained in the inboard of each filter cylinder are attracted to the bottom of filter cylinder by the mode that air outlet 41 shares negative pressure with inboard negative pressure port 43 and outboard negative pressure port 44, planetary rotation assembly 12 drives filter cylinder to rotate in cooperation with this mode, finally is intercepted by fine sieve filter plate 45, and the impurities are accumulated in the bottom, ensure the normal work above filter cylinder, and the rotation of bottom plate main body 42 can drive air induction wheel 23 and primary filter cylinder 11 to rotate, as motor transmission component.

[0036] The working principle of the air induction fan device will be described below.

[0037] As Figures 1-5As shown, the driving motor is started to drive the air guide accumulation bottom plate 4 to rotate, and then the air guide wheel 23 and the first-stage filter cylinder 11 connected therewith are synchronously rotated, the first-stage filter cylinder 11 drives the positioning connecting column 123 to rotate, the planetary rotation gear 124 is self-rotated to drive the driven rotation gear ring 125, thereby the second-stage filter cylinder 13 and the third-stage filter cylinder 14 are rotated, the differential speed of the planetary gear set enhances the filtering effect, the air guide device 3 inside the motor is cooperated with the driving air guide wheel 23 to rotate to generate suction, the external gas enters from the air inlet main body 2, and then passes through the first-stage filter cylinder 11, the second-stage filter cylinder 13 and the third-stage filter cylinder 14, the filter cylinders of various stages are rotated, the filtering holes 15 thereof are used for filtering the impurities of different particle sizes in stages, the impurities are prevented from being accumulated, the negative pressure is used for sucking the filtered air, the filtered gas is discharged into the air guide device 3 through the air outlet 41, meanwhile, the air outlet 41 shares the negative pressure with the inner negative pressure port 43 and the outer negative pressure port 44, the impurities are sucked to the bottom of the filter cylinder, are intercepted and accumulated by the fine sieve filter plate 45, and the normal work of the filter cylinder is guaranteed.

[0038] The above is a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A fan unit for facilitating filtration, comprising a fan unit (3), characterised in that: The air inlet device (3) top middle part is provided with air inlet main body (2), the air inlet main body (2) inside is provided with filter core (1), the filter core (1) bottom is provided with air inlet accumulation bottom plate (4), the air inlet accumulation bottom plate (4) bottom is provided in air inlet device (3) top middle part, the air inlet main body (2) inner side and filter core (1) inner side are communicated, the filter core (1) inner side and air inlet accumulation bottom plate (4) are communicated, the air inlet accumulation bottom plate (4) inner side and air inlet device (3) are communicated, the air inlet accumulation bottom plate (4) bottom is provided with drive motor.

2. A draft inducer device for facilitating filtration according to claim 1, wherein: The air inlet main body (2) includes main body shell (22), the main body shell (22) bottom is fixedly connected to the top end of air inlet device (3), the main body shell (22) top is fixedly connected with positioning guardrail (21), the main body shell (22) inner side is provided with air inlet wheel (23), the air inlet wheel (23) bottom is fixedly connected to the outer surface of air inlet accumulation bottom plate (4).

3. A draft inducer device for facilitating filtration according to claim 2, wherein: The filter core (1) includes primary filter cylinder (11), the primary filter cylinder (11) bottom is fixedly connected to the top end of air inlet accumulation bottom plate (4) outside, the primary filter cylinder (11) inner side is provided with secondary filter cylinder (13), the secondary filter cylinder (13) bottom is rotatably connected to the top end of air inlet accumulation bottom plate (4), the secondary filter cylinder (13) inner side is provided with tertiary filter cylinder (14), the tertiary filter cylinder (14) bottom is rotatably connected to the top middle part of air inlet accumulation bottom plate (4), the tertiary filter cylinder (14) top and primary filter cylinder (11) inner side are provided with planetary rotation assembly (12) together, the outer surface of primary filter cylinder (11), secondary filter cylinder (13) and tertiary filter cylinder (14) is all provided with several filter holes (15) that are internally and externally through.

4. A draft inducer device for facilitating filtration according to claim 3, wherein: The diameter of several filter holes (15) is sequentially reduced from outside to inside according to the inside and outside relationship of primary filter cylinder (11), secondary filter cylinder (13) and tertiary filter cylinder (14), and the centers of primary filter cylinder (11), secondary filter cylinder (13) and tertiary filter cylinder (14) are on the same straight line.

5. A draft inducer device for facilitating filtration as defined in claim 3, wherein: The planetary rotation assembly (12) includes a fixed shaft (121), the top end of which is fixedly connected to the middle of the bottom end of the positioning guardrail (21), and the fixed shaft (121) is rotatably connected to the middle of the top end of the three-stage filter cylinder (14), and the outer surface of the fixed shaft (121) is fixedly connected with a positioning guide gear (122) on one side near the top end of the two-stage filter cylinder (13) and the top end of the three-stage filter cylinder (14), and the outer surface of the positioning guide gear (122) is meshingly connected with a planetary rotation gear (124), and the top end of the planetary rotation gear (124) is rotatably connected with a positioning connecting column (123), and the top end of the positioning connecting column (123) is fixedly connected to the top end of the inner side of the first-stage filter cylinder (11) above, and the top end of the positioning connecting column (123) is fixedly connected to the top end of the inner side of the two-stage filter cylinder (13) below, and the outer side of the planetary rotation gear (124) is meshingly connected with a driven rotary gear ring (125), and the bottom end of the driven rotary gear ring (125) is fixedly connected to the outer side of the top end of the two-stage filter cylinder (13) above, and the bottom end of the driven rotary gear ring (125) is fixedly connected to the outer side of the top end of the three-stage filter cylinder (14) below.

6. A draft inducer device for facilitating filtration according to claim 5, wherein: The fixed shaft (121) is in the same straight line as the center of the first-stage filter cylinder (11), and the outer surface of the fixed shaft (121) is rotatably connected with the first-stage filter cylinder (11) and the two-stage filter cylinder (13).

7. A draft inducer device for facilitating filtration as defined in claim 3, wherein: The air guide accumulation bottom plate (4) includes a bottom plate body (42), the outer surface of which is fixedly connected to the bottom end of the inner side of the air guide wheel (23), and the top end of the outer side of the bottom plate body (42) is fixedly connected to the bottom end of the first-stage filter cylinder (11), and the bottom end of the bottom plate body (42) is provided with a driving motor, and the top end of the middle of the bottom plate body (42) is provided with an air outlet (41), and the diameter of the air outlet (41) is the same as the inner diameter of the three-stage filter cylinder (14), and the bottom end of the three-stage filter cylinder (14) is rotatably connected to the top end of the outer side of the air outlet (41) of the bottom plate body (42), and the bottom end of the two-stage filter cylinder (13) is rotatably connected to the top end of the bottom plate body (42), and a plurality of inner negative pressure ports (43) are formed between the three-stage filter cylinder (14) and the two-stage filter cylinder (13) in the inside of the bottom plate body (42), the bottom end of the inner negative pressure port (43) is communicated with the air outlet (41), and the top end of the inner negative pressure port (43) is communicated with the inner side of the two-stage filter cylinder (13), a plurality of outer negative pressure ports (44) are formed between the two-stage filter cylinder (13) and the first-stage filter cylinder (11) in the inside of the bottom plate body (42), the bottom end of the outer negative pressure port (44) is communicated with the air outlet (41), and the top end of the outer negative pressure port (44) is communicated with the inner side of the first-stage filter cylinder (11), and the top end of the inner negative pressure port (43) and the outer negative pressure port (44) are fixedly connected with a fine sieve filter plate (45).

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