CN114087235B

CN114087235B - Inside air filtering structure of air-blower

Info

Publication number: CN114087235B
Application number: CN202210077187.XA
Authority: CN
Inventors: 方文玲
Original assignee: Nantong Ji Teng Blower Co ltd
Current assignee: Haikou Meilan Qinxuan Technology Service Center
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-03-29
Anticipated expiration: 2042-01-24
Also published as: CN114087235A

Abstract

The invention discloses an internal air filtering structure of a blower, belonging to the field of blower equipment, and comprising a volute and a driving motor arranged on the side surface of the volute, wherein the driving motor is used for driving an impeller in the volute, the volute and the driving motor are combined to form a blower assembly, an air inlet at one end of the volute, which is far away from the driving motor, is provided with a filtering assembly, the filtering assembly comprises an installation outer cover, the filtering assembly also comprises a flow control mechanism arranged in the installation outer cover, the flow control mechanism is arranged far away from the air inlet, the filtering assembly also comprises a filtering mechanism, the filtering mechanism is arranged close to the air inlet, one side, facing the filtering mechanism, of the annular wall of the installation outer cover is provided with a flaring sleeve, the flaring sleeve is used for expanding the air inlet inner diameter of the installation outer cover, facing the air inlet of the volute, and the blower assembly can realize that the impeller is damaged due to pressurization at an outlet and the reduction of air supply quantity, the flow resistance of the inlet air is reduced, and the functions of dirt removal and dust filtration are realized.

Description

Inside air filtering structure of air-blower

Technical Field

The invention relates to the field of blower equipment, in particular to an internal air filtering structure of a blower.

Background

The blower mainly comprises the following six parts: motor, air cleaner, air-blower body, air chamber, base, oil drip mouth. The blower eccentrically operates by a rotor offset in a cylinder, and sucks, compresses, and discharges air by changing the volume between vanes in a rotor groove. During operation, the pressure difference of the blower is used to automatically deliver the lubricant to the oil dropping nozzle and drop it into the cylinder to reduce friction and noise while keeping the gas in the cylinder from flowing back.

The fan mainly is applied to industrial fields such as ventilation, coal, electric power, oil, along with the development of each trade in recent years, wherein the air-blower of mainly being applied to ventilation field, mostly through the inside of air-blower air supply to purifier, but this kind of connected mode makes the flow resistance of air-blower air outlet increase, leads to the inside pressurized of air-blower to increase, can cause the inside impeller of air-blower to damage in the past for a long time, arouses the problem that the air-supply capacity descends.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide an air filtering structure in a blower, which can reduce the probability of impeller damage and air output reduction caused by outlet pressurization, reduce the flow resistance of inlet air, and remove dirt and dust.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The internal air filtering structure of the blower comprises a volute and a driving motor arranged on the side surface of the volute, wherein the driving motor is used for driving an impeller in the volute;

the filter assembly includes a mounting housing.

The filtering assembly further comprises a flow control mechanism arranged inside the mounting outer cover, the flow control mechanism is far away from the air inlet, the filtering assembly further comprises a filtering mechanism, and the filtering mechanism is close to the air inlet.

And a flaring sleeve is arranged on one side, facing the filtering mechanism, of the annular wall of the mounting outer cover and is used for enlarging the air inlet inner diameter of the mounting outer cover, facing the volute air inlet.

Further, the filtering mechanism comprises a bent pipe arranged on the annular wall of the flaring sleeve in an annular array mode, one end of the bent pipe is arranged on the annular wall of the flaring sleeve, the other end of the bent pipe is connected with a filtering sleeve, and the end portion of the filtering sleeve is connected with the bent pipe through a sealing annular sheet arranged.

Furthermore, a filter element is arranged inside the filter sleeve, a holding end plate is arranged at one end of the filter element, clamping grooves are formed in the annular wall of the holding end plate at equal intervals, protruding strips are arranged at positions, corresponding to the clamping grooves, of the inner annular wall of the filter sleeve, a fixing bottom plate is arranged at the other end of the filter element, a pushing column is fixed to the side, away from the filter element, of the fixing bottom plate, one end of the pushing column penetrates through the inner bottom wall of the filter sleeve, a supporting spring is sleeved on the outer annular wall of the pushing column, one end of the supporting spring is supported on the side face of the fixing bottom plate, and the other end of the supporting spring is fixed to the inner bottom wall of the filter sleeve.

Furthermore, the flow control mechanism comprises a mesh enclosure fixed at one end of the mounting outer cover, the mesh enclosure is far away from the volute air inlet, flow control plates are symmetrically arranged inside the mesh enclosure, a vertically upward adjusting rod is fixed on each flow control plate, and the top end of each adjusting rod penetrates through the mesh enclosure and the mounting outer cover to extend to the outside.

Furthermore, the flow control plate is provided with three protruding peaks, a sunken diversion trench is formed between the peaks, one side of the flow control plate facing the mesh enclosure is provided with a smooth arc shape, and the cross section of the flow control plate is in a water drop shape.

Furthermore, a partition plate is installed on one side, facing the filtering mechanism, of the flaring sleeve, and the flaring sleeve and the partition plate form an air storage chamber.

Furthermore, the annular wall of the fixed bottom plate is rotatably connected with triangular limiting blocks which are uniformly distributed, and a limiting convex ring is annularly arrayed on one side, close to the supporting spring, of the inner annular wall of the filtering sleeve.

The inner diameter of the limiting convex ring is larger than the diameter of the fixed bottom plate.

The convex strip and the triangular limiting block are arranged in a staggered mode, and the triangular limiting block and the limiting convex ring are correspondingly arranged.

Furthermore, an airflow groove is formed in one side, facing the annular wall of the mounting outer cover, of the filtering sleeve, and the airflow groove extends to the inside of the mounting outer cover to be communicated with the inside of the mounting outer cover.

Furthermore, the flaring sleeve, the bent pipe and the filtering sleeve are communicated with the mounting outer cover.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the scheme, in the process of sucking air by rotating the driving motor, the flow control plate divides the air, the cross section of the flow control plate is in a water drop shape, specifically, the arc end of the flow control plate is large, the peak convex end is small, the low-pressure area at the rear part of the flow control plate is reduced, the airflow backflow space is reduced, the resistance is reduced, meanwhile, three protruding peak protrusions are arranged on the flow control plate, when the airflow passes through the surface of the flow control plate, the pressure is reduced along the flow direction, and the diversion grooves are formed between the peak protrusions, so that the airflow flows backwards along the diversion grooves in sequence, the phenomenon of reducing the adverse pressure gradient is generated, the airflow entering flow rate is optimized and improved on the basis of controllable air volume, and the induced air pressure of the air inlet is reduced under the condition that the flow control plate is perpendicular to the mesh enclosure.

(2) This scheme, treat that filtered gas causes inside the air reserve room by driving motor, flow to the inside of filter tube through the return bend, filter tube inside filter core filters the back to the air, drainage to the outside of filter core, get into the inside of installation dustcoat through the air current groove, pass through impeller discharge through filterable air, accomplish the filtration to the air, when avoiding export pressure boost and leading to the impeller to damage, lead to the air-supply volume to descend, realize alleviating the flow resistance of inlet wind, and the function of scrubbing filtration dirt concurrently.

Drawings

FIG. 1 is a schematic view of a blower and filter assembly according to the present invention;

FIG. 2 is a schematic view of the blower of the present invention shown in a separated state from the filter assembly;

FIG. 3 is a schematic diagram of the filter assembly of the present invention in a disengaged state;

FIG. 4 is a schematic top view of the flow control plate according to the present invention;

FIG. 5 is a schematic structural view showing a state where the filter cartridge is separated in the present invention;

FIG. 6 is a schematic structural view of the positions of the triangular limiting block and the limiting convex ring in the present invention;

FIG. 7 is a schematic view of a half-sectional perspective structure of the filter mechanism of the present invention;

FIG. 8 is a schematic view of a half-section of a filter assembly according to the present invention;

FIG. 9 is a side view of the present invention in FIG. 8.

The reference numbers in the figures illustrate:

1. a volute; 2. a drive motor; 3. a filtration assembly; 4. installing an outer cover; 5. a flow control mechanism; 6. a filtering mechanism; 7. flaring the sleeve; 8. a mesh enclosure; 9. a flow control plate; 10. adjusting a rod; 901. a diversion trench; 11. a partition plate; 12. bending the pipe; 13. a filter sleeve; 14. a filter element; 15. a retention end plate; 16. a card slot; 17. a convex strip; 18. fixing the bottom plate; 19. pushing the column; 20. a support spring; 21. a triangular limiting block; 22. a limit convex ring; 23. an air flow groove; s, an air storage chamber.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Referring to fig. 1-3, an internal air filtering structure of a blower includes a volute 1 and a driving motor 2 installed on a side surface of the volute 1, the driving motor 2 is used for driving an impeller inside the volute 1, the volute 1 and the driving motor 2 are combined to form a blower assembly, and an air inlet of the volute 1 is provided with a filtering assembly 3;

the filter assembly 3 comprises a mounting housing 4;

the filtering assembly 3 further comprises a flow control mechanism 5 arranged inside the mounting outer cover 4, the flow control mechanism 5 is arranged far away from the air inlet, the filtering assembly 3 further comprises a filtering mechanism 6, and the filtering mechanism 6 is arranged close to the air inlet;

and a flaring sleeve 7 is arranged on the annular wall of the mounting outer cover 4 towards one side of the filtering mechanism 6, and the flaring sleeve 7 is used for enlarging the air inlet inner diameter of the mounting outer cover 4 towards the air inlet of the volute 1.

The impeller in the volute 1 is driven by the driving motor 2, air is induced into the volute 1, and the airflow passes through the flow control mechanism 5 and the filtering mechanism 6 in sequence and is transmitted to a required area through the air outlet, so that the airflow purification and filtration are completed.

Referring to fig. 3, the flow control mechanism 5 includes a mesh enclosure 8 fixed at one end of the mounting housing 4, the mesh enclosure 8 is disposed away from the air inlet of the volute 1, flow control plates 9 are symmetrically disposed inside the mesh enclosure 8, a vertically upward adjusting rod 10 is fixed on the flow control plates 9, and the top end of the adjusting rod 10 passes through the mesh enclosure 8 and the mounting housing 4 and extends to the outside.

Furthermore, the adjusting rod 10 is connected with the mounting outer cover 4 and the mesh enclosure 8 in a damping manner.

Further, the flow control plates 9 are vertically arranged, and the number of the flow control plates is not less than two.

Furthermore, a boss is arranged on the annular wall of the mounting outer cover 4 corresponding to the extending direction of the adjusting rod 10, the top of the adjusting rod 10 penetrates through the boss, and a rotating button is fixed on the adjusting rod.

Referring to fig. 3-4, the flow control plate 9 has three protruding peaks, a concave flow guiding groove 901 is formed between the peaks, one side of the flow control plate 9 facing the mesh enclosure 8 is smooth and rounded, and the cross section of the flow control plate 9 is in a droplet shape.

Furthermore, through adjusting the degree of inclination of accuse flow board 9, increase or reduce the size of air intake windage, reach the effect of regulation control intake, compare in the air outlet pressure boost at the air intake of air-blower, avoided air outlet flow resistance to continuously increase, reduced the inside air chamber pressurized of air-blower and increased, the impaired phenomenon of impeller takes place.

The flow control plate 9 is used for shunting air in the process of sucking air by rotating the driving motor 2, the cross section of the flow control plate 9 is in a water drop shape, specifically, the arc end of the flow control plate 9 is large, the peak convex end is small, the low-pressure area at the rear part of the flow control plate 9 is small, the air flow backflow space is reduced, the resistance is reduced, three protruding peaks are arranged on the flow control plate 9, when the air flow passes through the surface of the flow control plate 9, the pressure is reduced along the flow direction, and the flow guide grooves 901 are formed between the peaks, so that the air flow sequentially flows backwards along the flow guide grooves 901, the phenomenon of reducing the adverse pressure gradient is avoided, the air flow entering speed is optimally improved, and the induced air pressure of an air inlet is reduced on the basis of controlling the air volume under the condition that the flow control plate 9 is perpendicular to the mesh enclosure 8.

Furthermore, when air is introduced into the housing 4, the air is isolated by the partition 11 and temporarily stored in the air storage chamber S, and the flow control mechanism 5 and the filter mechanism 6 are isolated from each other by air and do not interfere with each other.

Referring to fig. 3-5, the filtering mechanism 6 includes a ring-shaped array of bent tubes 12 disposed on the annular wall of the flared sleeve 7, one end of the bent tubes 12 is mounted on the annular wall of the flared sleeve 7, the other end is connected to a filtering sleeve 13, and the end of the filtering sleeve 13 is connected to the bent tubes 12 through a sealing ring.

Further, the number of the bent pipes 12 is not less than three.

Referring to fig. 5, a filter element 14 is disposed inside a filter sleeve 13, a holding end plate 15 is disposed at one end of the filter element 14, slots 16 are disposed on an annular wall of the holding end plate 15 at equal intervals, raised strips 17 are disposed at positions, corresponding to the slots 16, of an inner annular wall of the filter sleeve 13, a fixing bottom plate 18 is mounted at the other end of the filter element 14, a pushing post 19 is fixed on a side surface of the fixing bottom plate 18, which is away from the filter element 14, one end of the pushing post 19 penetrates through an inner bottom wall of the filter sleeve 13, a supporting spring 20 is sleeved on an outer annular wall of the pushing post 19, one end of the supporting spring 20 is supported on a side surface of the fixing bottom plate 18, and the other end of the supporting spring is fixed on the inner bottom wall of the filter sleeve 13.

Further, the filter element 14 is a concave-convex honeycomb filter screen, which has cleanable performance, realizes recyclable effect, and reduces consumable cost for long-time continuous use.

Further, a sealing member is disposed between the inner bottom wall of the filter sleeve 13 and the push post 19.

Further, the support spring 20 is in a compressed state when the filter cartridge 14 is positioned inside the filter sleeve 13.

Referring to fig. 5-7, the annular array of the annular wall of the fixed base plate 18 is provided with a triangular limiting block 21, the triangular limiting block 21 is rotatably mounted on the annular wall of the fixed base plate 18, and the annular array of the inner annular wall of the filtering sleeve 13 close to the supporting spring 20 is provided with a limiting convex ring 22;

the inner diameter of the limit convex ring 22 is larger than the diameter of the fixed bottom plate 18;

the convex strip 17 and the triangular limiting block 21 are arranged in a staggered mode, and the triangular limiting block 21 and the limiting convex ring 22 are correspondingly arranged.

Furthermore, the number of the triangular limiting blocks 21 is consistent with that of the limiting convex rings 22.

Further, triangle stopper 21 is right triangle to the right angle face is towards PMKD 18's rampart, and triangle stopper 21 is connected with PMKD 18 reset through reset spring, and triangle stopper 21 is towards the right angular one side automatic re-setting.

Wherein, the convex strip 17 corresponding to the end plate 15 is kept to be pushed into the inside of the filter sleeve 13 through the clamping groove 16, because the triangular limiting block 21 is arranged on the annular wall of the fixed base plate 18, when one corner of the triangular limiting block 21 contacts the edge of the limiting convex ring 22, the triangular limiting block 21 is lifted up until the triangular limiting block 21 integrally enters the other side of the limiting convex ring 22, the triangular limiting block 21 automatically resets, the top of the triangular limiting block 21 is limited on the other side wall of the limiting convex ring 22, so that the filter element 14 is wholly limited on the other side of the limiting convex ring 22 through the triangular limiting block 21 to realize fixation, the knob rotates the push pillar 19, the push pillar 19 drives the fixed base plate 18 to rotate, so that the triangular limiting block 21 is separated from the limit of the limiting convex ring 22, the support spring 20 releases pressure to eject the filter element 14, and the effect of conveniently cleaning and replacing the filter element 14 is realized.

Referring to fig. 7-9, a partition 11 is installed on a side of the flared sleeve 7 facing the filter mechanism 6, and the flared sleeve 7 and the partition 11 form an air reservoir S.

Referring to fig. 7-9, the side of the filter sleeve 13 facing the wall of the mounting housing 4 is provided with an airflow slot 23, and the airflow slot 23 extends to communicate with the inside of the mounting housing 4.

Referring to fig. 8-9, flared sleeve 7, elbow 12, filter sleeve 13 are in communication with mounting housing 4.

Wherein, treat that filtered gas causes inside air reserve room S by driving motor 2, flow to the inside of filter sleeve 13 through return bend 12, filter sleeve 13 inside filter element 14 filters the air after, drainage to the outside of filter element 14, in the inside of passing through air current groove 23 entering installation dustcoat 4, through the impeller discharge of filterable air, accomplish the filtration to the air, when avoiding export pressure boost and leading to the impeller to damage, lead to the air-supply volume to descend, realize the flow resistance that alleviates the inlet wind, and the function of dirt filtration dirt concurrently.

When in use: the impeller in the volute 1 is driven by the driving motor 2, air is induced into the volute 1, the air flow sequentially passes through the flow control mechanism 5 and the filtering mechanism 6 and is transmitted to a required area through the air outlet, the air flow purification and filtration are completed, in the process that the driving motor 2 rotates to suck air, the flow control plate 9 divides the air flow, and as the cross section of the flow control plate 9 is in a drop-shaped shape, specifically, the arc end of the flow control plate 9 is large, the peak convex end is small, the low-pressure area at the rear part of the flow control plate 9 is small, the air flow backflow space is reduced, the resistance is reduced, meanwhile, the flow control plate 9 is provided with three protruding peaks, when the air flow passes through the surface of the flow control plate 9, the pressure is reduced along the flow direction, and the flow guide grooves 901 are formed between the peaks, so that the air flow sequentially flows backwards along the flow guide grooves 901, the phenomenon of reducing the adverse pressure gradient occurs, and on the basis of controlling the air volume, the condition that the flow control plate 9 is vertical to the mesh enclosure 8, the air inlet flow speed is improved in an optimized mode, and the induced air pressure of the air inlet is reduced.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. An internal air filter structure for a blower, comprising a volute (1), and a drive motor (2) mounted on the side of the volute (1), the drive motor (2) being used to drive the volute (1) Internal impeller, the volute (1) and the drive motor (2) are combined to form a blower assembly, characterized in that: the air inlet at one end of the volute (1) facing away from the drive motor (2) is provided with a filter assembly (3). );

The filter assembly (3) includes a mounting cover (4);

The filter assembly (3) further includes a flow control mechanism (5) disposed inside the installation cover (4), the flow control mechanism (5) is disposed away from the air inlet, and the filter assembly (3) further includes a filter a mechanism (6), the filtering mechanism (6) is arranged close to the air inlet;

A flared sleeve (7) is provided on the ring wall of the installation cover (4) facing the filter mechanism (6), and the flared sleeve (7) is used to expand the installation cover (4) toward the volute ( 1) The inner diameter of the air inlet;

The filtering mechanism (6) comprises an array of elbows (12) arranged on the annular wall of the flared sleeve (7), and one end of the elbows (12) is mounted on the annular wall of the flared sleeve (7). , the other end is connected with a filter sleeve (13), and the end of the filter sleeve (13) is connected with the elbow (12) through the provided sealing ring sheet;

The filter sleeve (13) is provided with a filter element (14) inside, one end of the filter element (14) is provided with a holding end plate (15), and a ring wall of the holding end plate (15) is equally spaced with A clamping groove (16), a convex strip (17) is provided at the position of the inner ring wall of the filter sleeve (13) corresponding to the clamping groove (16), and a fixed bottom plate (18) is installed at the other end of the filter element (14), A push column (19) is fixed on the side of the fixed bottom plate (18) facing away from the filter element (14), one end of the push column (19) passes through the inner bottom wall of the filter sleeve (13), and the push column (19) ) is sleeved with a support spring (20), one end of the support spring (20) is supported on the side of the fixed bottom plate (18), and the other end is fixed on the inner bottom wall of the filter sleeve (13).

2 . The internal air filter structure of a blower according to claim 1 , wherein the flow control mechanism ( 5 ) comprises a net cover ( 8 ) fixed on one end of the installation cover ( 4 ), and the net cover ( 8) Set away from the air inlet of the volute (1), a flow control plate (9) is symmetrically arranged inside the mesh cover (8), and a vertically upward adjusting rod (10) is fixed on the flow control plate (9). ), the top end of the adjusting rod (10) extends to the outside through the mesh cover (8) and the installation cover (4).

3. The internal air filter structure of a blower according to claim 2, characterized in that: the flow control plate (9) is provided with three protruding peaks, and recessed diversion grooves ( 901), the side of the flow control plate (9) facing the mesh cover (8) is set in a smooth arc shape, and the cross section of the flow control plate (9) is in the shape of a water drop.

4. An internal air filter structure for a blower according to claim 1, characterized in that: a partition plate (11) is installed on the side of the flared sleeve (7) facing the filter mechanism (6), and the flared sleeve (7) is installed with a partition plate (11). The mouth sleeve (7) and the partition plate (11) form an air storage chamber (S).

5. The internal air filter structure of a blower according to claim 1, wherein the ring wall of the fixed bottom plate (18) is rotatably connected with evenly distributed triangular limit blocks (21), and the filter sleeve An annular array of limiting convex rings (22) on one side of the inner ring wall of the tube (13) close to the support spring (20);

The inner diameter of the limiting convex ring (22) is larger than the diameter of the fixed bottom plate (18);

The protruding strips (17) and the triangular limiting blocks (21) are arranged in a staggered position, and the triangular limiting blocks (21) are correspondingly arranged with the limiting convex rings (22).

6. An internal air filter structure of a blower according to claim 1, characterized in that: the filter sleeve (13) is provided with an air flow groove (23) on the side of the annular wall of the installation cover (4), and the The air flow groove (23) extends to the inside of the installation housing (4).

7. An internal air filter structure for a blower according to claim 1, characterized in that: the flared sleeve (7), the elbow (12), and the filter sleeve (13) communicate with the installation cover (4) .