CN210178666U

CN210178666U - Centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions

Info

Publication number: CN210178666U
Application number: CN201920796378.5U
Authority: CN
Inventors: Xiaoming Wang; 王小明
Original assignee: Chongqing Minghua Frp Co Ltd
Current assignee: Chongqing Minghua Frp Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-03-24
Anticipated expiration: 2029-05-30

Abstract

The utility model provides a centrifugal fire control smoke exhaust fan with purify filtering capability relates to fire control smoke ventilator technical field, including the fan body, the output intercommunication of fan body has connecting pipe, and the one end intercommunication that connecting pipe kept away from the fan body has the outlet duct, and the position cover that connecting pipe was kept away from on the outlet duct surface is equipped with prevents suck-back device, and the input intercommunication of fan body has the intake pipe, and the one end intercommunication that the fan body was kept away from to the intake pipe has filter equipment, and filter equipment's bottom intercommunication has the air inlet. The utility model discloses in, the filter screen has and filters the air current that passes through the air inlet and avoid the dust to get into inside the fan body, and the filter screen that sets up through the slope makes the dust that adsorbs on the filter screen surface break away from the filter screen under the action of gravity and avoids the filter screen to block up, utilizes to twist to move the distance that the lid stopper made between gag cap and the rose box and shortens to utilize the elasticity that the spring contraction produced to promote the rose box and extrude at the spacing ring upper end surface, avoid producing between rose box and the spacing ring and reveal.

Description

Centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions

Technical Field

The utility model relates to a fire control induced-draft fan technical field especially relates to a centrifugal fire control smoke exhaust fan with purify filtering capability.

Background

The centrifugal fan is a driven fluid machine which is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial kilns, cooling and ventilation of air conditioning equipment and household electrical equipment, drying and sorting of grains, air supply of wind tunnels and inflation and propulsion of air cushion boats and the like.

The problem that exists in the in-process of using centrifugal fire control smoke exhaust fan now is:

1. when the centrifugal fire-fighting smoke exhaust fan is used, dust is easily adsorbed into the fan by the smoke exhaust fan, so that the dust is adsorbed on fan blades of the fan to increase the load of the fan blades, and the rotating speed of the fan blades is reduced;

2. centrifugal fire control smoke exhaust fan when not using, external dust can be in the inside accumulation of tuber pipe to inside making the dust drop the fan, thereby it reduces the rotational speed of flabellum to lead to the dust to adsorb the heavy burden that increases the flabellum on the fan flabellum.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centrifugal fire control smoke exhaust fan with purify filtering capability to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the utility model provides a centrifugal fire control smoke exhaust fan with purify filtering capability, includes the fan body, the output intercommunication of fan body has connecting pipe, the one end intercommunication that fan body was kept away from to connecting pipe has the outlet duct, the position cover that connecting pipe was kept away from on the outlet duct surface is equipped with prevents the suck-back device, the input intercommunication of fan body has the intake pipe, the one end intercommunication that fan body was kept away from to the intake pipe has filter equipment, filter equipment's bottom intercommunication has the air inlet.

Prevent that suck-back device includes the second mounting bracket of fixed connection at the outlet duct inner wall, the upper end fixed surface of second mounting bracket is connected with the bracing piece, the one end fixedly connected with funnel of second mounting bracket is kept away from to the bracing piece, the first mounting bracket of fixed surface of outlet duct, the pot head that the outlet duct was kept away from to first mounting bracket is equipped with the fan housing, the inner wall sliding connection of fan housing has the circular cone stopper, the thread groove has been seted up on the surface of outlet duct, the surface threaded connection of outlet duct has the nut, the upper end fixedly connected with bearing of nut, the one end and the circular cone stopper fixed connection of nut are kept away from to the.

Preferably, filter equipment includes the sleeve with the intake pipe intercommunication, telescopic inner wall fixedly connected with spacing ring, telescopic inner wall sliding connection has the rose box, rose box sleeve clearance fit, the through-hole has all been seted up to the diapire and the right wall of rose box, the inner wall fixedly connected with filter screen of rose box, the filter screen is located between two through-holes the two, telescopic surperficial threaded connection has the lid stopper, the bottom outer wall fixedly connected with spring of lid stopper, the bottom and the rose box upper end of spring contact.

Preferably, the diameter of the funnel is larger than that of the air outlet pipe, and the funnel is used for preventing dust from flowing back into the air inlet pipe and the air outlet pipe.

Preferably, the upper end surface of the nut is fixedly connected with the outer ring of the bearing, the inner ring of the bearing is fixedly connected with the conical plug, and the conical plug is in clearance fit with the inner wall of the fan cover.

Preferably, the fan housing is formed by combining an upper hollow cone and a lower hollow cylinder.

Preferably, the filter screen is located on the filter box diagonal line, and the filter screen is minus 60 degrees with the horizontal plane.

Preferably, the outer wall of the bottom end of the cover plug is fixedly connected with a limiting rod, a spring is sleeved on the surface of the limiting rod, and the limiting rod is used for limiting the movement direction of the spring.

The utility model has the advantages that:

1. this centrifugal fire control smoke exhaust fan with purify filtering capability, the filter screen has and filters the air current that passes through the air inlet and avoids inside the dust gets into the fan body, the filter screen that sets up through the slope makes the dust that adsorbs at the filter screen surface break away from the filter screen under the action of gravity and avoids the filter screen to block up, utilize to twist to move the lid stopper and make the distance between gag cap and the rose box shorten, thereby utilize the elasticity that the spring shrink produced to promote the rose box extrusion at the spacing ring upper end surface, avoid producing between rose box and the spacing ring and reveal.

2. This centrifugal fire control smoke exhaust fan with purify filtering capability utilizes the hollow funnel of fan housing upper end to pass through the tiny export of hollow funnel, avoids inside the dust gets into the fan housing, blows into the funnel through the air current that the outlet duct blew out the fan body inside, utilizes the air current that the funnel avoided the outlet duct to directly blow to the fan housing, utilizes swivel nut to make the nut slide in circular cone stopper inside with the help of the bearing to thereby make gap spill between accumulational dust fan housing of circular cone stopper upper end and the circular cone stopper.

Drawings

Fig. 1 is a schematic structural view of a centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions in the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1;

fig. 3 is a schematic structural view of the middle anti-suck back device of the present invention.

Reference numerals: 1. a fan body; 2. connecting a conduit; 3. an air inlet pipe; 4. an air outlet pipe; 5. an anti-suck-back device; 501. a fan housing; 502. a first mounting bracket; 503. a second mounting bracket; 504. a support bar; 505. a funnel; 506. a nut; 507. a bearing; 508. a conical plug; 6. a filtration device; 601. covering and plugging; 602. a limiting rod; 603. a spring; 604. a sleeve; 605. a filter box; 606. filtering with a screen; 7. an air inlet.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

This embodiment 1, as shown in fig. 1, fig. 2 and fig. 3, a centrifugal fire control smoke exhaust fan with purifying and filtering function, including fan body 1, fan body 1's output intercommunication has connecting pipe 2, connecting pipe 2 keeps away from fan body 1's one end intercommunication has outlet duct 4, the position cover that connecting pipe 2 was kept away from on the surface of outlet duct 4 is equipped with prevents suck-back device 5, fan body 1's input intercommunication has intake pipe 3, the one end intercommunication that fan body 1 was kept away from to intake pipe 3 has filter equipment 6, filter equipment 6's bottom intercommunication has air inlet 7.

The specific arrangement and function of the suck back prevention device 5 and the filter device 6 are described below:

as shown in fig. 1 and 3, the suck back prevention device 5 includes a second mounting frame 503 fixedly connected to the inner wall of the outlet pipe 4, a support rod 504 is fixedly connected to the upper end surface of the second mounting frame 503, a funnel 505 is fixedly connected to one end of the support rod 504 far from the second mounting frame 503, a first mounting frame 502 is fixedly connected to the surface of the outlet pipe 4, a wind shield 501 is sleeved on one end of the first mounting frame 502 far from the outlet pipe 4, the wind shield 501 is formed by combining an upper hollow cone and a lower hollow cylinder, a cone plug 508 is slidably connected to the inner wall of the wind shield 501, a thread groove is formed on the surface of the outlet pipe 4, a nut 506 is threadedly connected to the surface of the outlet pipe 4, the upper end surface of the nut 506 is fixedly connected to the outer ring of the bearing 507, the inner ring of the bearing 507 is fixedly connected to the cone plug 508, and, the upper end of the nut 506 is fixedly connected with a bearing 507, and one end of the bearing 507 far away from the nut 506 is fixedly connected with a conical plug 508.

As shown in fig. 1 and 3, the movement principle and the achieved effect of the whole suck-back prevention device 5 are as follows: the filter screen 606 has and filters the air current that air inlet 7 passes through and avoids inside the dust gets into fan body 1, the filter screen 606 that sets up through the slope makes the dust that adsorbs on the surface of filter screen 606 break away from filter screen 606 under the action of gravity and avoids filter screen 606 to block up, utilize to twist the lid stopper 601 and make the distance between gag and the rose box 605 shorten, thereby utilize the elasticity that the shrink of spring 603 produced to promote the rose box 605 and extrude the spacing ring upper end surface, avoid producing between rose box 605 and the spacing ring and reveal.

As shown in fig. 1 and 2, the filtering device 6 includes a sleeve 604 communicated with the air inlet pipe 3, the inner wall of the sleeve 604 is fixedly connected with a limiting ring, the inner wall of the sleeve 604 is slidably connected with a filtering box 605, the filtering box 605 and the sleeve 604 are in clearance fit, through holes are formed in the bottom wall and the right wall of the filtering box 605, a filtering net 606 is fixedly connected to the inner wall of the filtering box 605, the filtering net 606 is located on the diagonal line of the filtering box 605, the filtering net 606 and the horizontal plane form a negative 60 °, the filtering net 606 which is obliquely arranged enables filtered dust to naturally fall under the action of gravity, the filtering net 606 is located between the two through holes, the surface of the sleeve 604 is in threaded connection with a cover plug 601, the outer wall of the bottom end of the cover plug 601 is fixedly connected with a spring 603, and the bottom end of the.

As shown in fig. 1 and 2, the movement principle and the achieved effect of the whole filtering device 6 are as follows: the hollow funnel 505 at the upper end of the fan cover 501 is used for preventing dust from entering the fan cover 501 through the fine outlet of the hollow funnel 505, the airflow blown out from the fan body 1 is blown into the funnel 505 through the air outlet pipe 4, the funnel 505 is used for preventing the airflow of the air outlet pipe 4 from blowing the fan cover 501 directly, the nut 506 is rotated by the rotating nut 506 to slide in the conical plug 508 through the bearing 507, and therefore the gap between the fan cover 501 and the conical plug 508 can leak out due to the accumulated dust at the upper end of the conical plug 508.

As shown in fig. 1 and 2, the funnel 505 has a larger diameter than the outlet pipe 4, and the funnel 505 prevents dust from flowing back into the outlet pipe 4.

As shown in fig. 1 and 3, a limiting rod 602 is fixedly connected to an outer wall of a bottom end of the cover plug 601, a spring 603 is sleeved on a surface of the limiting rod 602, and a movement direction of the spring 603 is limited by the limiting rod 602.

The working principle of the whole mechanism is as follows: the filter screen 606 is provided to filter the air flow passing through the air inlet 7 to prevent dust from entering the inside of the blower body 1, the dust adsorbed on the surface of the filter screen 606 is separated from the filter screen 606 under the action of gravity by the obliquely arranged filter screen 606 to avoid the blockage of the filter screen 606, the distance between the plug cover and the filter box 605 is shortened by screwing the cover plug 601, thereby utilizing the elasticity generated by the contraction of the spring 603 to push the filter box 605 to extrude on the upper end surface of the limit ring, avoiding the leakage between the filter box 605 and the limit ring, utilizing the fine outlet of the hollow funnel 505 at the upper end of the fan cover 501 to avoid the dust entering the fan cover 501, the air flow blown out from the fan body 1 is blown into the funnel 505 through the air outlet pipe 4, the funnel 505 prevents the air flow of the air outlet pipe 4 from blowing the fan cover 501 directly, the nut 506 is rotated to slide in the conical plug 508 through the bearing 507, therefore, dust accumulated on the upper end of the conical plug 508 leaks out from the gap between the fan cover 501 and the conical plug 508.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a centrifugal fire control smoke exhaust fan with purify filtering capability, includes fan body (1), its characterized in that: the fan comprises a fan body (1), and is characterized in that the output end of the fan body (1) is communicated with a connecting guide pipe (2), one end of the connecting guide pipe (2), which is far away from the fan body (1), is communicated with an air outlet pipe (4), the position, which is far away from the connecting guide pipe (2), on the surface of the air outlet pipe (4) is sleeved with an anti-suck-back device (5), the input end of the fan body (1) is communicated with an air inlet pipe (3), one end, which is far away from the fan body (1), of the air inlet pipe (3) is communicated with a filtering device (6);

the suck-back prevention device (5) comprises a second mounting frame (503) fixedly connected with the inner wall of the air outlet pipe (4), the upper end surface of the second mounting frame (503) is fixedly connected with a support rod (504), one end of the supporting rod (504) far away from the second mounting rack (503) is fixedly connected with a funnel (505), a first mounting rack (502) is fixedly connected to the surface of the air outlet pipe (4), a fan cover (501) is sleeved at one end, far away from the air outlet pipe (4), of the first mounting rack (502), the inner wall of the fan cover (501) is connected with a conical plug (508) in a sliding way, the surface of the air outlet pipe (4) is provided with a thread groove, the surface of the air outlet pipe (4) is in threaded connection with a nut (506), the upper end of the nut (506) is fixedly connected with a bearing (507), one end of the bearing (507) far away from the nut (506) is fixedly connected with the conical plug (508).

2. The centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions as recited in claim 1, wherein: filter equipment (6) include sleeve (604) with intake pipe (3) intercommunication, the inner wall fixedly connected with spacing ring of sleeve (604), the inner wall sliding connection of sleeve (604) has filter box (605), filter box (605) sleeve (604) clearance fit, the through-hole has all been seted up to the diapire and the right wall of filter box (605), the inner wall fixedly connected with filter screen 606 of filter box (605), filter screen 606 is located between two through-holes the two, the surperficial threaded connection of sleeve (604) has lid stopper (601), the bottom outer wall fixedly connected with spring (603) of lid stopper (601), the bottom and the filter box (605) upper end of spring (603) contact.

3. The centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions as recited in claim 1, wherein: the diameter of the funnel (505) is larger than that of the air outlet pipe (4).

4. The centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions as recited in claim 1, wherein: the upper end surface of the nut (506) is fixedly connected with the outer ring of the bearing (507), the inner ring of the bearing (507) is fixedly connected with the conical plug (508), and the conical plug (508) is in clearance fit with the inner wall of the fan cover (501).

5. The centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions as recited in claim 1, wherein: the fan cover (501) is formed by combining an upper-end hollow cone and a lower-end hollow cylinder.

6. The centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions as recited in claim 2, characterized in that: the filter screen 606 is located on the diagonal of the filter box (605), and the filter screen 606 is at an angle of minus 60 degrees to the horizontal.

7. The centrifugal fire-fighting smoke exhaust fan with purifying and filtering functions as recited in claim 2, characterized in that: the bottom end outer wall fixedly connected with gag lever post (602) of lid stopper (601), gag lever post (602) surface cover has spring (603).