阅读说明：本技术 一种离心通风机用出风机构 (Air outlet mechanism for centrifugal ventilator ) 是由 余秀朵 于 2020-12-10 设计创作，主要内容包括：本发明公开了一种离心通风机用出风机构,包括出风管,所述出风管的顶壁开设有滑槽,所述滑槽的侧壁焊接固定有压电陶瓷,所述滑槽侧壁通过导电弹簧弹性连接有金属滤网,所述出风管上部内壁嵌设有正电板,所述正电板的外侧包裹有绝缘层,所述出风管的下部内壁嵌设有第一接地板和第二接地板,所述出风管的顶部内壁开设有滑腔,所述滑腔内通过弹簧弹性连接有磁块,所述磁块的底部固定连接有圆管,所述圆管的侧壁焊接固定有多个刮板。优点在于：通过设置出风管、金属滤网、多个接地板和正电板等结构,使金属滤网上的电子均匀重新分布,金属滤网上整体带负荷,此时金属滤网可通过静电引力吸附出风管内的灰尘,避免灰尘从离心通风机中排出。(The invention discloses an air outlet mechanism for a centrifugal ventilator, which comprises an air outlet pipe, wherein the top wall of the air outlet pipe is provided with a chute, the side wall of the chute is fixedly welded with piezoelectric ceramics, the side wall of the chute is elastically connected with a metal filter screen through a conductive spring, the inner wall of the upper part of the air outlet pipe is embedded with a positive electric plate, the outer side of the positive electric plate is wrapped with an insulating layer, the inner wall of the lower part of the air outlet pipe is embedded with a first ground plate and a second ground plate, the inner wall of the top of the air outlet pipe is provided with a sliding cavity, the sliding cavity is elastically connected with a magnetic block through a spring, the bottom of the magnetic block is fixedly connected with a round pipe. Has the advantages that: through setting up structures such as tuber pipe, metal filter screen, a plurality of ground plates and positive electric plate, make the even redistribution of electron on the metal filter screen, the whole load that takes on the metal filter screen, the dust in metal filter screen accessible electrostatic attraction adsorbs the air-out pipe this moment, avoids the dust to discharge from centrifugal fan.)

1. The utility model provides an air-out mechanism for centrifugal fan, includes air-out pipe (1), its characterized in that, spout (2) have been seted up to the inside roof of air-out pipe (1), the lateral wall welded fastening of spout (2) has piezoceramics (15), spout (2) lateral wall has metal filter screen (3) through conducting spring (4) elastic connection, metal filter screen (3) sliding connection is in spout (2), air-out pipe (1) upper portion inner wall inlays and is equipped with positive electricity board (6), the outside parcel of positive electricity board (6) has insulating layer (5), the lower part inner wall of air-out pipe (1) inlays and is equipped with first ground plate (7) and second ground plate (8), first ground plate (7) and second ground plate (8) all connect through earth connection and earth, sliding chamber (10) have been seted up to the top inner wall of air-out pipe (1), have magnetic path (13) through spring (18) elastic connection in sliding chamber (10), bottom fixedly connected with pipe (11) of magnetic path (13), the lateral wall welded fastening of pipe (11) has a plurality of scraper blades (12), every a plurality of dust absorption holes (22) have all been seted up to scraper blade (12) bottom, it runs through fixedly connected with bellows (23) to go out tuber pipe (1) inner wall, dust absorption hole (22) and bellows (23) fixed intercommunication, fixedly connected with fan (24) in bellows (23).

2. The air outlet mechanism for the centrifugal ventilator according to claim 1, wherein the inner wall of the air outlet pipe (1) above the sliding cavity (10) is embedded with a first electromagnet (14), and the inner wall of the air outlet pipe (1) is embedded with a capacitor (9).

3. The air outlet mechanism for the centrifugal fan according to claim 2, wherein a cavity (16) is formed in the bottom inner wall of the air outlet pipe (1), a conductive rod (17) is arranged on the top wall of the cavity (16), a conductive sheet (19) is slidably connected in the cavity (16), a pull rod (20) is welded and fixed to the top of the conductive sheet (19), and an air deflector (21) is welded and fixed to the pull rod (20) after the pull rod (20) penetrates through the inner wall of the air outlet pipe (1).

4. The air outlet mechanism for the centrifugal ventilator according to claim 3, wherein a groove (26) is formed in the inner wall of the bottom of the air outlet pipe (1), a magnetic baffle (27) is slidably connected in the groove (26), and a second electromagnet (25) is embedded in the inner wall of the air outlet pipe (1) at a position below the groove (26).

5. The air outlet mechanism for the centrifugal fan as claimed in claim 4, wherein the capacitor (9) is electrically connected with the conductive rod (17) and the second electromagnet (25), the capacitor (9) is electrically connected with the conductive spring (4), and the piezoelectric ceramic (15) is electrically connected with the capacitor (9), the first electromagnet (14) and the fan (24).

Technical Field

The invention relates to the technical field of centrifugal ventilators, in particular to an air outlet mechanism for a centrifugal ventilator.

Background

The working principle of the centrifugal ventilator is as follows: when the impeller rotates, the gas between the blades is subjected to centrifugal force to obtain kinetic energy (dynamic pressure head) to be discharged from the periphery of the impeller, and flows to the outlet of the ventilator through the guide of the volute casing, so that negative pressure is formed at the central part of the impeller, external airflow continuously flows in for supplement, and the ventilator can discharge the gas.

However, when the existing centrifugal ventilator is used, the impurities such as dust in air are often sucked into the centrifugal ventilator together and then discharged after pressurization, so that a large amount of dust is doped in the gas after centrifugal pressurization.

Therefore, the air outlet mechanism for the centrifugal fan is provided.

Disclosure of Invention

The invention aims to solve the problem that a dust removal function is not arranged in a centrifugal fan in the prior art, and provides an air outlet mechanism for the centrifugal fan.

In order to achieve the purpose, the invention adopts the following technical scheme: an air outlet mechanism for a centrifugal ventilator comprises an air outlet pipe, wherein a chute is formed in the inner top wall of the air outlet pipe, piezoelectric ceramics are welded and fixed on the side wall of the chute, the side wall of the chute is elastically connected with a metal filter screen through a conductive spring, the metal filter screen is slidably connected in the chute, a positive electric plate is embedded in the inner wall of the upper part of the air outlet pipe, an insulating layer is wrapped on the outer side of the positive electric plate, a first ground plate and a second ground plate are embedded in the inner wall of the lower part of the air outlet pipe, the first ground plate and the second ground plate are both connected with the ground through ground wires, a sliding cavity is formed in the inner wall of the top of the air outlet pipe, a magnetic block is elastically connected in the sliding cavity through a spring, a round pipe is fixedly connected with the bottom of the magnetic block, a plurality of scraping plates are welded and fixed on the side, the dust absorption hole is fixedly communicated with the corrugated pipe, and a fan is fixedly connected in the corrugated pipe.

In foretell air-out mechanism for centrifugal fan, the inner wall that the play tuber pipe is located smooth chamber top inlays and is equipped with first electro-magnet, the inner wall that goes out the tuber pipe inlays and is equipped with the condenser.

In the air outlet mechanism for the centrifugal ventilator, a cavity is formed in the inner wall of the bottom of the air outlet pipe, a conductive rod is arranged on the top wall of the cavity, a conductive sheet is connected in the cavity in a sliding mode, a pull rod is fixedly welded to the top of the conductive sheet, and an air deflector is fixedly welded to the pull rod after the pull rod penetrates through the inner wall of the air outlet pipe.

In the air outlet mechanism for the centrifugal ventilator, a groove is formed in the inner wall of the bottom of the air outlet pipe, a magnetic baffle is connected in the groove in a sliding mode, and a second electromagnet is embedded in the inner wall of the air outlet pipe below the groove.

In the air outlet mechanism for the centrifugal fan, the capacitor is electrically connected with the conductive rod and the second electromagnet, the capacitor is electrically connected with the conductive spring, and the piezoelectric ceramic is electrically connected with the capacitor, the first electromagnet and the fan.

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

1. by arranging the air outlet pipe, the metal filter screen, the plurality of grounding plates, the positive electric plate and other structures, when the metal filter screen slides below the positive electric plate, free electrons on the metal filter screen are gathered to be close to the upper end of the positive electric plate, then the bottom end of the metal filter screen is contacted with the first grounding plate, so that negative charges can move from the first grounding plate to the metal filter screen and are neutralized with electrons at the bottom end of the metal filter screen, the bottom end of the metal filter screen is electrically neutral, and after the metal filter screen is separated from the first grounding plate, the electrons on the metal filter screen are uniformly redistributed, so that the whole body on the metal filter screen is loaded, and at the moment, the metal filter screen can adsorb dust in the air;

2. through the arrangement of the first electromagnet, the fan, the scraper plate and other structures, after the metal filter screen is contacted with the second ground plate, the second ground plate can guide electrons on the metal filter screen into the ground to enable the electrons to be neutral and lose attraction force on dust, the metal filter screen mechanically extrudes piezoelectric ceramics, the piezoelectric ceramics generate voltage to supply power to the first electromagnet, the fan and the capacitor, the first electromagnet is electrified to push the magnetic block and the scraper plate on the circular tube to scrape off the dust on the metal filter screen, the fan rotates in the corrugated pipe after being electrified to pump gas in the corrugated pipe out of the air outlet pipe, so that the dust scraped by the scraper plate is sucked into the corrugated pipe through the dust suction hole, and then the dust is pumped out of the air outlet pipe to be subjected to dust removal and collection;

3. through setting up aviation baffle, conducting strip and second electro-magnet isotructure, if the intraductal wind speed of air-out is great, when needing to adjust, the wind can produce the lift to the aviation baffle drives the conducting strip upward movement, thereby conducting strip and conducting rod offset, makes the condenser to the power supply of second electro-magnet, promotes the magnetic shield and upwards slides, carries out the separation to the wind body, thereby the wind body velocity of flow in the control air-out pipe realizes the automatically regulated to the wind speed.

Drawings

Fig. 1 is a schematic structural view of an air outlet mechanism for a centrifugal fan according to the present invention;

fig. 2 is an enlarged schematic view of a part a of the structure of the air outlet mechanism for the centrifugal fan according to the present invention;

fig. 3 is a schematic diagram of the magnetic baffle and the groove portion of the air outlet mechanism for the centrifugal fan according to the present invention when sliding relatively.

In the figure: the device comprises an air outlet pipe 1, a sliding groove 2, a metal filter screen 3, a conductive spring 4, an insulating layer 5, a positive electric plate 6, a first grounding plate 7, a second grounding plate 8, a capacitor 9, a sliding cavity 10, a circular tube 11, a scraper 12, a magnetic block 13, a first electromagnet 14, a piezoelectric ceramic 15, a cavity 16, a conductive rod 17, a spring 18, a conductive sheet 19, a pull rod 20, an air deflector 21, a dust suction hole 22, a corrugated tube 23, a fan 24, a second electromagnet 25, a groove 26 and a magnetic baffle 27.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-3, an air outlet mechanism for a centrifugal ventilator comprises an air outlet pipe 1, a chute 2 is arranged on the inner top wall of the air outlet pipe 1, piezoelectric ceramics 15 is welded and fixed on the side wall of the chute 2, a metal filter screen 3 is elastically connected on the side wall of the chute 2 through a conductive spring 4, the metal filter screen 3 is slidably connected in the chute 2, a positive electric plate 6 is embedded on the inner wall of the upper part of the air outlet pipe 1, an insulating layer 5 is wrapped on the outer side of the positive electric plate 6, a first ground plate 7 and a second ground plate 8 are embedded on the inner wall of the lower part of the air outlet pipe 1, the first ground plate 7 and the second ground plate 8 are both connected with the ground through a ground wire, a sliding cavity 10 is arranged on the inner wall of the top of the air outlet pipe 1, a magnetic block 13 is elastically connected in the sliding cavity 10 through a spring 18, a round pipe 11 is fixedly connected, the inner wall of the air outlet pipe 1 is fixedly connected with a corrugated pipe 23 in a penetrating way, the dust suction hole 22 is fixedly communicated with the corrugated pipe 23, and a fan 24 is fixedly connected in the corrugated pipe 23.

The inner wall of the air outlet pipe 1, which is located above the sliding cavity 10, is embedded with a first electromagnet 14, the inner wall of the air outlet pipe 1 is embedded with a capacitor 9, the first electromagnet 14 generates a magnetic field after being electrified, the polarity of the first electromagnet 14 is opposite to that of the magnetic block 13, and the first electromagnet 14 and the magnetic block 13 mutually form a magnetic repulsion force, and the first electromagnet 14 pushes the magnetic block 13 and the scraper 12 on the circular pipe 11 to scrape off dust on the metal filter screen 3 after being electrified, so that the dust on the surface of the metal filter screen 3 is effectively removed.

A cavity 16 is formed in the inner wall of the bottom of the air outlet pipe 1, a conductive rod 17 is arranged on the top wall of the cavity 16, a conductive sheet 19 is connected in the cavity 16 in a sliding manner, a pull rod 20 is fixedly welded on the top of the conductive sheet 19, a wind deflector 21 is fixedly welded after the pull rod 20 penetrates through the inner wall of the air outlet pipe 1, the wind deflector 21 separates the conductive sheet 19 from the conductive rod 17 through the pull rod 20 under the action of self gravity when normal wind power is generated, so that circuits of the capacitor 9, the conductive rod 17 and the second electromagnet 25 are in an open-close state, if the wind speed in the air outlet pipe 1 is high and needs to be adjusted, wind generates lift force to the wind deflector 21 when flowing through the wind deflector 21, the wind deflector 21 drives the conductive sheet 19 to move upwards, the conductive sheet 19 is abutted against the conductive rod 17, so that the capacitor 9 supplies power to the second electromagnet 25, and the second, and the magnetic repulsion force is mutually formed between the magnetic baffle plate and the magnetic baffle plate 27, the magnetic baffle plate 27 is pushed to slide upwards, and the air body is blocked, so that the flow velocity of the air body in the air outlet pipe 1 is controlled, and the automatic adjustment of the air speed is realized.

Go out tuber pipe 1 bottom inner wall and seted up recess 26, sliding connection has magnetic baffle 27 in the recess 26, goes out tuber pipe 1 and inlays at the inner wall of recess 26 below position and be equipped with second electro-magnet 25, and second electro-magnet 25 promotes magnetic baffle 27 after circular telegram and slides, stops the wind body of circulation in the tuber pipe 1 to make the wind body velocity of flow of taking out in the tuber pipe 1 stable.

The capacitor 9 is electrically connected with the conductive rod 17 and the second electromagnet 25, the capacitor 9 is electrically connected with the conductive spring 4, the piezoelectric ceramic 15 is electrically connected with the capacitor 9, the first electromagnet 14 and the fan 24, the piezoelectric ceramic 15 charges the capacitor 9 and also supplies power to the first electromagnet 14 and the fan 24, the capacitor 9 discharges the conductive rod 17 and the second electromagnet 25, and the capacitor 9 supplies power to the conductive spring 4.

In the invention, the air body which is pressurized by passing through the centrifugal fan flows in the air outlet pipe 1, dust is carried in the air body outwards, the air body pushes the metal filter screen 3 to slide along the chute 2 in the air outlet pipe 1, when the metal filter screen 3 slides to the lower left of the positive electrode plate 6, due to the electrostatic attraction of the positive electrode plate 6, the free electrons on the metal screen 3 are gathered toward the upper end of the positive electrode plate 6, the bottom end of the metal screen 3 far from the positive electrode plate 6 is positively charged, and then the bottom end of the metal screen 3 contacts the first grounding plate 7, the negative charges move from the first grounding plate 7 toward the metal screen 3, and neutralize the electrons at the bottom end of the metal screen 3, so that the bottom end of the metal screen 3 is electrically neutral, when the metal screen 3 and the first ground plate 7 are out of contact, the electrons on the metal screen 3 are evenly redistributed, so that the metal filter screen 3 is loaded on the whole, and the metal filter screen 3 can adsorb dust in the air outlet pipe 1 through electrostatic attraction.

The second grounding plate 8 is arranged at a position right below the piezoelectric ceramic 15, and after the metal filter screen 3 is contacted with the second grounding plate 8, the second grounding plate 8 can guide electrons on the metal filter screen 3 to the ground to enable the electrons to be electrically neutral and lose attraction force on dust, so that the dust is not adsorbed on the metal filter screen 3 any more.

At the moment, the metal filter screen 3 mechanically extrudes the piezoelectric ceramics 15 to generate a piezoelectric effect, the metal filter screen 3 is positioned at the rightmost side of the chute 2 and is abutted against the piezoelectric ceramics 15, the piezoelectric ceramics 15 generates voltage to supply power to the first electromagnet 14, the fan 24 and the capacitor 9, the first electromagnet 14 generates a magnetic field after being electrified, and the polarity of the first electromagnet 14 is opposite to that of the magnetic block 13, and the first electromagnet 14 is mutually magnetic repulsive force, after being electrified, the magnetic block 13 and the scraper 12 on the circular tube 11 are pushed to scrape off the dust on the metal filter screen 3, so that the dust on the surface of the metal filter screen 3 is effectively removed, the fan 24 rotates in the corrugated pipe 23 after being electrified, the air in the corrugated pipe 23 is pumped out of the air outlet pipe 1, the dust scraped by the scraper 12 is sucked into the corrugated pipe 23 through the dust suction hole 22, and then the dust is drawn out from the air outlet pipe 1 for dust removal and collection.

In normal wind power, the aviation baffle 21 breaks away from conducting strip 19 and conducting rod 17 through pull rod 20 under the effect of self gravity, thereby make condenser 9, the circuit of conducting rod 17 and second electro-magnet 25 is in the state of opening and shutting, if the wind speed in the tuber pipe 1 is great, when needing to adjust, the wind body is when passing through aviation baffle 21, can produce the lift to aviation baffle 21, thereby aviation baffle 21 drives conducting strip 19 upward movement, thereby conducting strip 19 offsets with conducting rod 17, make condenser 9 supply power to second electro-magnet 25, produce magnetism after second electro-magnet 25 circular telegram, and each other be magnetic repulsion with magnetic baffle 27, promote magnetic baffle 27 upwards to slide, the separation is carried out to the wind body, thereby control the wind body velocity of flow in the tuber pipe 1, realize the automatically regulated to the wind speed.

Although the terms of the air outlet pipe 1, the chute 2, the metal screen 3, the conductive spring 4, the insulating layer 5, the positive electric plate 6, the first grounding plate 7, the second grounding plate 8, the capacitor 9, the sliding cavity 10, the circular pipe 11, the scraper 12, the magnetic block 13, the first electromagnet 14, the piezoelectric ceramic 15, the cavity 16, the conductive rod 17, the spring 18, the conductive sheet 19, the pull rod 20, the air deflector 21, the dust suction hole 22, the corrugated pipe 23, the fan 24, the second electromagnet 25, the groove 26, the magnetic baffle 27, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.