CN219220849U

CN219220849U - Draught fan with filtering function

Info

Publication number: CN219220849U
Application number: CN202320179082.5U
Authority: CN
Inventors: 李洋; 李鹏程
Original assignee: Taian Huaweizhongke Fine Materials Co ltd
Current assignee: Taian Huaweizhongke Fine Materials Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-06-20
Anticipated expiration: 2033-02-10

Abstract

The utility model relates to the technical field of induced draft fans, and discloses an induced draft fan with a filtering function, which comprises a bottom plate and an inserted link, wherein a filter box is arranged on the left side of the top of the bottom plate, an induced draft fan body is arranged on the right side of the top of the bottom plate, the left side of the induced draft fan body is communicated with an input end, and the top of the input end is fixedly connected with a fixing box. This draught fan with filtering capability, through with the draught fan body remove left side, make the input peg graft behind the inner chamber of play tuber pipe, rotate the hand wheel, the hand wheel drives the screw rod and rotates, the screw rod drives the swivel nut through the effect of screw thread and removes left side, the swivel nut drives the installation piece and removes left side, make the left side joint of installation piece in the inner chamber of mount pad, be connected filter tank and draught fan body, the purpose of convenient dismouting has been reached, the dismouting with filtering mechanism is inconvenient when having solved current draught fan in the use, thereby the problem of inconvenient people's use.

Description

Draught fan with filtering function

Technical Field

The utility model relates to the technical field of induced fans, in particular to an induced fan with a filtering function.

Background

The induced draft fan is a device which generates negative pressure through the rotation of an impeller and further extracts air from a system (device), is generally arranged at the tail end of a boiler and is used for extracting hot flue gas in a hearth, and is widely used for ventilation, dust discharge and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air-conditioning devices and household appliances; drying and selecting grains; the working principle of the induced draft fan is basically the same as that of the turbine compressor, namely the induced draft fan is basically the same as that of the turbine compressor due to low gas flow rate and small pressure change, and the change of specific volume of the gas is generally not needed to be considered, namely the gas is treated as incompressible fluid.

Although the prior art meets the use requirements of users to a certain extent, certain defects still exist in the use process, and the specific problems are as follows: the existing induced draft fan is inconvenient to disassemble and assemble with the filtering mechanism when in use, as most of induced draft fans are welded with the filter screen or connected by screws, the filter screen is inconvenient to replace, and the induced draft fan is affected to be overhauled subsequently, so that the induced draft fan is inconvenient to use by people.

In order to solve the above problems, we propose an induced draft fan with filtering function.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a draught fan with filtering capability, includes bottom plate and inserted bar, the rose box has been placed in the left side at bottom plate top, the draught fan body has been placed on the right side at bottom plate top, the left side intercommunication of draught fan body has the input, the top fixedly connected with fixed box of input, the inner chamber of fixed box has the screw rod through bearing swing joint, the surface threaded connection of screw rod has the swivel nut, the top fixedly connected with installation piece of swivel nut, the reservation groove has been seted up at the top on rose box right side, the left side fixedly connected with mount pad of reservation groove inner chamber, the left side joint of installation piece is in the inner chamber of mount pad.

Preferably, the right side of the filter box is communicated with an air outlet pipe, a sealing ring is adhered to the inner wall of the air outlet pipe, the left side of the input end is inserted into the inner cavity of the air outlet pipe, and the outer side of the input end is in contact with the inner side of the sealing ring.

Preferably, the top and the bottom of rose box inner wall are all fixedly connected with cassette, the quantity of cassette is two sets of, and the inner chamber of two sets of cassettes joint has dust filter screen and HEPA filter screen respectively.

Preferably, the left side intercommunication of rose box has the air-supply line, the left and right sides on rose box front surface all has the chamber door through hinge swing joint.

Preferably, the right side at the top of the filter tank is provided with a through groove, the inner surface of the filter tank is provided with a clamping groove at the bottom of the reserved groove, the inner surface of the mounting block is provided with a through hole, and the bottom of the inserted link sequentially penetrates through the inner cavities of the through groove and the through hole and is clamped in the inner cavity of the clamping groove.

Preferably, the spout has been seted up to the bottom of fixed box inner wall, the bottom fixedly connected with slider of swivel nut, the bottom sliding connection of slider is in the inner chamber of spout, the right side fixedly connected with hand wheel of screw rod, the guiding hole has been seted up at the left top of fixed box, the left side of installation piece runs through the inner chamber of guiding hole and extends to the left side of fixed box.

Compared with the prior art, the utility model provides the induced draft fan with the filtering function, which has the following beneficial effects:

1. this draught fan with filtering capability, through with the draught fan body remove left side, make the input peg graft behind the inner chamber of play tuber pipe, rotate the hand wheel, the hand wheel drives the screw rod and rotates, the screw rod drives the swivel nut through the effect of screw thread and removes left side, the swivel nut drives the installation piece and removes left side, make the left side joint of installation piece in the inner chamber of mount pad, be connected filter tank and draught fan body, the purpose of convenient dismouting has been reached, the dismouting with filtering mechanism is inconvenient when having solved current draught fan in the use, thereby the problem of inconvenient people's use.

2. This draught fan with filtering capability, through with the inserted bar downwardly moving, make the bottom of inserted bar pass through the inner chamber of through-hole and through-hole in proper order and joint in the inner chamber of draw-in groove, spacing to the installation piece, and then improve the connection effect between fixed box and the draught fan body, through setting up the sealing washer, effectively improve the leakproofness between input and the play tuber pipe.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a partially cut-away structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is a schematic cross-sectional view of the fixing case of the present utility model.

Wherein: 1. a bottom plate; 2. a filter box; 3. a fixed box; 4. a draught fan body; 5. a door; 6. an input end; 7. an air inlet pipe; 8. a clamping seat; 9. an air outlet pipe; 10. a dust filter screen; 11. HEPA filter screen; 12. a seal ring; 13. a rod; 14. a through groove; 15. a mounting base; 16. a mounting block; 17. a reserved groove; 18. a clamping groove; 19. a through hole; 20. a guide hole; 21. a screw sleeve; 22. a slide block; 23. a chute; 24. a screw; 25. and a hand wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an induced draft fan with filtering capability, including bottom plate 1 and inserted bar 13, rose box 2 has been placed in the left side at bottom plate 1 top, induced draft fan body 4 has been placed on the right side at bottom plate 1 top, the left side intercommunication of induced draft fan body 4 has input 6, the top fixedly connected with fixed box 3 of input 6, the inner chamber of fixed box 3 has screw 24 through bearing swing joint, screw 24's surface threaded connection has swivel nut 21, the top fixedly connected with installation piece 16 of swivel nut 21, reservation groove 17 has been seted up at the top on rose box 2 right side, the left side fixedly connected with mount pad 15 of reservation groove 17 inner chamber, the left side joint of installation piece 16 is in the inner chamber of mount pad 15.

Specifically, the right side of the filter box 2 is communicated with an air outlet pipe 9, a sealing ring 12 is adhered to the inner wall of the air outlet pipe 9, the left side of the input end 6 is inserted into the inner cavity of the air outlet pipe 9, and the outer side of the input end 6 is in contact with the inner side of the sealing ring 12.

Through above-mentioned technical scheme, through setting up sealing washer 12, effectively improve the leakproofness between input 6 and the tuber pipe 9.

Specifically, the top and the bottom of the inner wall of the filter box 2 are fixedly connected with clamping seats 8, the number of the clamping seats 8 is two, and the inner cavities of the two groups of clamping seats 8 are respectively clamped with a dust filter screen 10 and a HEPA filter screen 11.

Through above-mentioned technical scheme, through setting up cassette 8, conveniently dismantle dust filter screen 10 and HEPA filter screen 11 and clear up or change.

Specifically, the left side intercommunication of rose box 2 has air-supply line 7, and the left and right sides on rose box 2 front surface all has chamber door 5 through hinge swing joint.

Specifically, the right side at the top of the filter box 2 is provided with a through groove 14, the inner surface of the filter box 2 is provided with a clamping groove 18 at the bottom of the reserved groove 17, the inner surface of the mounting block 16 is provided with a through hole 19, and the bottom of the inserted link 13 sequentially penetrates through the inner cavities of the through groove 14 and the through hole 19 and is clamped in the inner cavity of the clamping groove 18.

Through above-mentioned technical scheme, through with inserted bar 13 downwardly moving, make the bottom of inserted bar 13 pass through the inner chamber of through-hole 14 and through-hole 19 in proper order and joint in the inner chamber of draw-in groove 18, spacing is carried out mounting block 16, and then improves the connection effect between fixed box 3 and the draught fan body 4.

Specifically, the bottom of the inner wall of the fixed box 3 is provided with a chute 23, the bottom of the threaded sleeve 21 is fixedly connected with a slide block 22, the bottom of the slide block 22 is slidably connected in the inner cavity of the chute 23, the right side of the screw 24 is fixedly connected with a hand wheel 25, the top of the left side of the fixed box 3 is provided with a guide hole 20, and the left side of the mounting block 16 penetrates through the inner cavity of the guide hole 20 and extends to the left side of the fixed box 3.

Through the technical scheme, the stability of the screw sleeve 21 in the left-right moving process is effectively improved through the arrangement of the sliding groove 23 and the sliding block 22.

When the draught fan is used, firstly, the draught fan body 4 moves leftwards, the input end 6 is inserted into the inner cavity of the air outlet pipe 9, the hand wheel 25 is rotated, the hand wheel 25 drives the screw 24 to rotate, the screw 24 drives the threaded sleeve 21 to move leftwards through the action of threads, the threaded sleeve 21 drives the mounting block 16 to move leftwards, the left side of the mounting block 16 is clamped in the inner cavity of the mounting seat 15, the filter box 2 and the draught fan body 4 are connected, when the draught fan is dismounted, firstly, the inserting rod 13 moves upwards and is taken out, the hand wheel 25 is rotated in the opposite direction, the hand wheel 25 drives the screw 24 to rotate, the threaded rod 24 drives the threaded sleeve 21 to move rightwards through the action of threads, the threaded sleeve 21 drives the mounting block 16 to move rightwards, the mounting block 16 is not clamped in the inner cavity of the mounting seat 15, and then the draught fan body 4 moves rightwards, the filter box 2 and the draught fan body 4 are separated, and the aim of convenient dismounting is achieved, and the problem that people use the existing draught fan is inconvenient to dismount and mount the filter mechanism when the draught fan is used is solved (the working process of the whole device is not described in detail in the prior art).

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An induced draft fan with filtering capability, includes bottom plate (1) and inserted bar (13), its characterized in that: the filter box (2) has been placed in the left side at bottom plate (1) top, draught fan body (4) have been placed on the right side at bottom plate (1) top, the left side intercommunication of draught fan body (4) has input (6), the top fixedly connected with of input (6) is fixed box (3), the inner chamber of fixed box (3) has screw rod (24) through bearing swing joint, the surface threaded connection of screw rod (24) has swivel nut (21), the top fixedly connected with installation piece (16) of swivel nut (21), reserve groove (17) have been seted up at the top on filter box (2) right side, the left side fixedly connected with mount pad (15) of reserve groove (17) inner chamber, the left side joint of installation piece (16) is in the inner chamber of mount pad (15).

2. The induced draft fan with filtering capability according to claim 1, wherein: the right side intercommunication of rose box (2) has out tuber pipe (9), the inner wall bonding of going out tuber pipe (9) has sealing washer (12), the left side of input (6) is pegged graft in the inner chamber of going out tuber pipe (9), and the outside of input (6) and the inboard contact of sealing washer (12).

3. The induced draft fan with filtering capability according to claim 1, wherein: the top and the bottom of rose box (2) inner wall all fixedly connected with cassette (8), the quantity of cassette (8) is two sets of, and the inner chamber of two sets of cassettes (8) joint has dust filter screen (10) and HEPA filter screen (11) respectively.

4. The induced draft fan with filtering capability according to claim 1, wherein: the left side intercommunication of rose box (2) has air-supply line (7), the left and right sides of rose box (2) front surface all has chamber door (5) through hinge swing joint.

5. The induced draft fan with filtering capability according to claim 1, wherein: the right side at the top of the filter box (2) is provided with a through groove (14), the inner surface of the filter box (2) is provided with a clamping groove (18) at the bottom of the reserved groove (17), the inner surface of the mounting block (16) is provided with a through hole (19), and the bottom of the inserted link (13) sequentially penetrates through the inner cavities of the through groove (14) and the through hole (19) and is clamped in the inner cavity of the clamping groove (18).

6. The induced draft fan with filtering capability according to claim 1, wherein: the bottom of fixed box (3) inner wall has been seted up spout (23), the bottom fixedly connected with slider (22) of swivel nut (21), the bottom sliding connection of slider (22) is in the inner chamber of spout (23), the right side fixedly connected with hand wheel (25) of screw rod (24), guiding hole (20) have been seted up at the top of fixed box (3) left side, the left side of installation piece (16) runs through the inner chamber of guiding hole (20) and extends to the left side of fixed box (3).