CN218407830U

CN218407830U - Draught fan air volume improving device

Info

Publication number: CN218407830U
Application number: CN202222702153.3U
Authority: CN
Inventors: 程海兵; 商军魁; 李鲁; 朱建军; 王福强
Original assignee: Shandong Giantrun Building Materials Co ltd
Current assignee: Shandong Giantrun Building Materials Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-01-31
Anticipated expiration: 2032-10-13

Abstract

The utility model relates to a draught fan technical field, and disclose a draught fan amount of wind improve device, including draught fan cover to and the rotation motor of draught fan cover outside installation, draught fan cover's inside is provided with the main shaft, is provided with the stationary blade on the main shaft, stationary blade fixed mounting is on two edges of main shaft, the even setting of equidistance helps the ejector pad between two stationary blades, helps the ejector pad to fix on the main shaft, is provided with the first flabellum towards the right-hand slope on the outside of the left stationary blade of main shaft, is provided with the second flabellum towards the left side slope in the outside of the stationary blade on main shaft right side. The utility model discloses in, install the stationary blade on the main shaft, install first flabellum and second flabellum on two sets of stationary blades respectively, two sets of flabellums enable draught fan suction bigger, can install the induced air device additional in the inlet scoop department of draught fan cover, and the induced air device can accelerate the air current velocity of flow, sets up between the stationary blade and helps the ejector pad, hits the ability indirect main shaft rotational speed that improves on helping the ejector pad after fast-speed wind gets into.

Description

Draught fan air volume improving device

Technical Field

The utility model relates to a draught fan technical field especially relates to a draught fan amount of wind improvement device.

Background

The induced draft fan is a device which generates negative pressure through the rotation of an impeller and further extracts air from the 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 exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilating and air inducing of boilers and industrial kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

Daily use draught fan air output is limited, if want bigger air output just need purchase an draught fan install the equipment additional again, not only consume money, but also need spend time install the equipment that needs the induced air additional on, consuming time and wasting power.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, consequently, the I provides a draught fan amount of wind improve device.

In order to realize the above-mentioned purpose, the utility model discloses a following technical scheme, an draught fan amount of wind improve device, including draught fan cover, and the rotation motor of draught fan cover outside installation, the inside of draught fan cover is provided with the main shaft, be provided with the stationary blade on the main shaft, stationary blade fixed mounting is on two edges of main shaft, the even setting of equidistance helps the ejector pad between two stationary blades, the ejector pad is fixed on the main shaft, be provided with towards the first flabellum of right side slope 45 on the outside of the left stationary blade of main shaft, the outside of the stationary blade on main shaft right side is provided with towards the second flabellum of left side slope 45.

Preferably, the induced draft fan is covered with the inlet scoop, and inlet scoop department is provided with the induced draft device, and the induced draft device is fixed on the induced draft fan cover, is provided with two spaces in wide mouthful groove and the slot in the induced draft device, and the inlet air channel of wide mouthful groove department is greater than the inlet air channel of slot department, has seted up the spread groove in the bottom of induced draft device.

Preferably, the air suction opening of the air suction fan cover is fixedly provided with a connecting block, the connecting block is the same as the connecting groove in size, and the connecting block is provided with a fixing groove.

Preferably, a driving groove is formed in the center of the main shaft, the driving groove penetrates through the main shaft, a rotating shaft is connected to the output end of the rotating motor, the rotating shaft penetrates through the side face of the induced draft fan cover, and the rotating shaft reaches the inside of the induced draft fan cover and is fixedly sleeved with the driving groove in the main shaft.

Preferably, a fixing bracket is arranged on the outer side of the rotating motor, the rotating motor is fixed on the fixing bracket, and the device can be fixed on the equipment through the fixing bracket.

Preferably, an air outlet is formed in one side, where the rotating motor is not installed, of the induced draft fan cover, and the air outlet is located in the center of the side face of the induced draft fan cover.

Advantageous effects

The utility model provides a draught fan amount of wind improving device. The method has the following beneficial effects:

(1) This draught fan amount of wind improve device is provided with the main shaft in the draught fan cover, installs the stationary blade on the main shaft, installs first flabellum and second flabellum on two sets of stationary blades respectively, and two sets of flabellums enable the draught fan suction bigger, still set up between the stationary blade simultaneously and help the ejector pad, hit after fast-speed wind gets into and can indirectly improve main shaft rotational speed on the ejector pad, reach the effect that makes the draught fan induced-draft volume of induced drafting increase.

(2) This draught fan amount of wind improve device can install the induced air device additional in the inlet scoop department of draught fan cover, is provided with the connecting block around the inlet scoop, has seted up the fixed slot on the connecting block, and the spread groove has been seted up to the bottom of induced air device, only needs to overlap the spread groove and just can make draught fan cover and induced air device fixed connection at the connecting block then pass from the fixed slot with the screw to just can reach the effect that simply improves draught fan efficiency of induced drafting fast.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, proportion, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and the modification of any structure, the change of proportion relation or the adjustment of size all fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the purpose which can be achieved by the present invention.

FIG. 1 is a schematic view of the structure of the left side of the outer part of the present invention;

FIG. 2 is a schematic view of the right side of the external structure of the present invention;

FIG. 3 is a schematic view of the fan blade structure of the present invention;

fig. 4 is a schematic plan view of the air inducing device of the present invention.

Illustration of the drawings: 1. a draught fan cover; 2. rotating the motor; 3. a rotating shaft; 4. a fixed bracket; 5. a main shaft; 6. a drive slot; 7. a fixing sheet; 8. a boosting block; 9. a first fan blade; 10. a second fan blade; 11. an air inducing device; 12. an air inlet; 13. connecting blocks; 14. fixing grooves; 15. an air outlet; 16. a wide-mouth groove; 17. a narrow-mouth groove; 18. and connecting the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: a draught fan air volume improving device is disclosed, as shown in figures 1 and 3, and comprises a draught fan cover 1 and a rotating motor 2 arranged on one side of the draught fan cover 1, wherein a fixed support 4 is arranged on the rotating motor 2, the fixed support 4 can fix the device on other equipment, a main shaft 5 is arranged inside the draught fan cover 1, a driving groove 6 is arranged at the central position of the main shaft 5, the driving groove 6 penetrates through the main shaft 5, a rotating shaft 3 is connected on the output end of the rotating motor 2, the rotating shaft 3 penetrates through the side surface of the draught fan cover 1, the rotating shaft 3 reaches the inside of the draught fan cover 1 and is fixedly sleeved with the driving groove 6 arranged on the main shaft 5, the rotating shaft 3 can rotate on the draught fan cover 1 and simultaneously drive the main shaft 5 to rotate, two fixing pieces 7 are arranged on the main shaft 5, fixed sheet 7 fixed welding is on two edges of surveying of main shaft 5, the equidistance is even between two fixed sheets 7 is provided with helps boost 8, help boost 8 is fixed on main shaft 5 vertically, the striking can indirectly improve main shaft 5's rotational speed on boost 8 after wind inhales, it has 45 first flabellum 9 of apex angle tilt towards left to weld on the outside of main shaft 5 left fixed sheet 7, be provided with 45 second flabellum 10 of apex angle tilt towards left on the outside of main shaft 5 right side fixed sheet 7, main shaft 5 drives first flabellum 9 and the second flabellum 10 that has tilted 45 on fixed sheet 7 when rotating and can make the inspiratory amount of wind increase to the biggest, air outlet 15 has been seted up on the one side that does not install rotation motor 2 at draught fan housing 1, air outlet 15 is in the center of draught fan housing 1 side.

Example 2: on the basis of embodiment 1, as shown in fig. 2 and fig. 4, an air suction opening 12 is formed in an air suction fan cover 1, an air suction device 11 can be installed at the air suction opening 12 of the air suction fan cover 1, two spaces, namely a wide opening groove 16 and a narrow opening groove 17, are formed in the air suction fan cover 1, an air inlet channel of the wide opening groove 16 is larger than an air inlet channel of the narrow opening groove 17, when air enters the narrow opening groove 17 from the wide opening groove 16, the air flows in an accelerated manner, a connecting groove 18 is formed in the bottom end of the air suction device 11, a connecting block 13 is fixedly welded to the air suction opening 12 of the air suction fan cover 1, the size of the connecting block 13 is the same as that of the connecting groove 18, a fixed groove 14 for fixed connection is formed in the connecting block 13, the air suction device 11 is sleeved on the connecting block 13 through the connecting groove 18, a screw penetrates through a hole formed in the connecting groove 18, which corresponds to the fixed groove 14, and penetrates through the fixed groove 14, and the air suction device 11 can be fixed to the air suction opening 12 of the air suction fan cover 1 after being tightened.

The utility model discloses a theory of operation:

when the air inducing device is used, the air inducing device 11 is additionally arranged on the air inducing hood 1, equipment needing air inducing is connected to the air inducing device 11, the rotating motor 2 is started, the rotating motor 2 can drive the spindle 5 to rotate, the first fan blade 9 and the second fan blade 10 on the spindle 5 can suck air into the air inducing fan from the air inducing device 11, when the air enters the narrow-mouth groove 17 from the wide-mouth groove 16 of the air inducing device 11, the extremely-fast narrow air of a channel can accelerate the speed of entering the air inducing hood 1, the high-speed air can collide with the boosting block 8 on the spindle 5 after entering the air inducing hood 1, the rotating speed of the spindle 5 is indirectly improved, and the sucked air is discharged out of the air inducing fan from the air outlet 15.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are intended to fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an induced draft fan amount of wind improving device, includes induced draft fan cover (1), and rotating electrical machines (2) of induced draft fan cover (1) outside installation, its characterized in that: the fan cover is characterized in that a main shaft (5) is arranged inside the fan cover (1), a fixing piece (7) is arranged on the main shaft (5), the fixing piece (7) is fixedly arranged on two edges of the main shaft (5) in a two-degree mode, a boosting block (8) is uniformly arranged between the fixing pieces (7) in an equidistant mode, the boosting block (8) is fixed on the main shaft (5), a first fan blade (9) which inclines 45 degrees towards the right is arranged on the outer side of the fixing piece (7) on the left side of the main shaft (5), and a second fan blade (10) which inclines 45 degrees towards the left is arranged on the outer side of the fixing piece (7) on the right side of the main shaft (5).

2. The air volume improving device of the induced draft fan according to claim 1, wherein: be provided with inlet scoop (12) on induced-draft fan cover (1), inlet scoop (12) department is provided with induced air device (11), induced air device (11) are fixed on induced-draft fan cover (1), be provided with two spaces in wide mouthful groove (16) and narrow mouthful groove (17) in induced air device (11), the inlet air channel of wide mouthful groove (16) department is greater than the inlet air channel of narrow mouthful groove (17) department, has seted up spread groove (18) in the bottom of induced air device (11).

3. The air volume improving device of the induced draft fan according to claim 2, wherein: the air suction opening (12) of the air suction fan cover (1) is fixedly provided with a connecting block (13), the size of the connecting block (13) is the same as that of the connecting groove (18), and the connecting block (13) is provided with a fixing groove (14).

4. The air volume improving device of the induced draft fan according to claim 1, wherein: the center of main shaft (5) goes out and has seted up drive groove (6), drive groove (6) run through main shaft (5), be connected with axis of rotation (3) on the output of rotation motor (2), axis of rotation (3) are passed from the side of draught fan cover (1), axis of rotation (3) arrive and draw the inside of fan cover (1) and drive groove (6) fixed the cup jointing on main shaft (5).

5. The air volume improving device of the induced draft fan according to claim 1, wherein: the outer side of the rotating motor (2) is provided with a fixing support (4), the rotating motor (2) is fixed on the fixing support (4), and the device can be fixed on equipment through the fixing support (4).

6. The induced draft fan air volume improving device of claim 1, which is characterized in that: an air outlet (15) is formed in one side, where the rotating motor (2) is not installed, of the air guide fan cover (1), and the air outlet (15) is located in the center of the side face of the air guide fan cover (1).