CN210544212U

CN210544212U - High efficiency waste gas draft cover

Info

Publication number: CN210544212U
Application number: CN201921219314.5U
Authority: CN
Inventors: 屈晓飞
Original assignee: Hangzhou Xunmei Plastic Products Co Ltd
Current assignee: Hangzhou Xunmei Plastic Products Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-19
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a high-efficiency exhaust gas exhaust hood, which comprises an exhaust gas hood and an exhaust pipe, wherein the exhaust gas hood comprises a panel, an air inlet and a cover plate, the air inlet is arranged on the panel, two notches are arranged at the edge of the panel, which is attached to the air inlet, two grooves are arranged at the edge of the inner wall of the panel, which is attached to the air inlet, the connecting line of the two grooves is mutually vertical to the connecting line of the two notches, a bracket is arranged on the cover plate, buckles are arranged at the corresponding positions of the bracket and the notches, filter screens are arranged between the brackets, the top of each filter screen is fixedly connected with an elastic cushion, noise reduction devices are arranged at the front side and the rear side of the air inlet, the buckles are embedded in the grooves, so that the cover plate is connected with the panel, the filter screens filter large-particle magazines, the elastic cushions buffer, then, the noise reduction device achieves the effect of reducing noise.

Description

High efficiency waste gas draft cover

Technical Field

The utility model relates to an industry environmental protection equipment technical field, in particular to high efficiency waste gas suction hood.

Background

The waste gas refers to toxic and harmful gas discharged by human in the production and living processes, and particularly the waste gas discharged by chemical plants, steel plants, pharmaceutical plants, oil refineries and the like has large smell, and if the waste gas is not treated in time, the waste gas can seriously pollute the environment and influence the human health. Along with the generation of waste gas, a waste gas treatment device is also appeared, and the waste gas treatment device is mainly used for removing industrial waste gas generated in the production process of a factory.

The exhaust gas discharged from factories is often mixed with granular dust, and the existing exhaust gas treatment device has a complex structure and an imperfect system. When waste gas is treated, the waste gas is not filtered completely, and the filtered waste gas is discharged outdoors, so that the environment is polluted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high efficiency waste gas suction hood.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a high-efficiency exhaust gas draft hood comprises an exhaust gas hood and an exhaust pipe, wherein the exhaust gas hood comprises a panel, an air inlet and a cover plate, the air inlet and the cover plate are both circular, the diameter of the cover plate is larger than that of the air inlet, the air inlet is formed in the panel, the air inlet is circular, two notches are formed in the edge, attached to the air inlet, of the panel, the shape of each notch is square, the connecting line of the two notches penetrates through the center of the air inlet, two grooves are formed in the edge, attached to the air inlet, of the inner wall of the panel, the connecting line of the two grooves penetrates through the center of the air inlet, the connecting lines of the two grooves are perpendicular to the connecting lines of the two notches, a support is arranged at one side, close to the air inlet, of the cover plate and corresponding to the edge of the air inlet, and the number, the brackets are evenly distributed on the cover plate, the corresponding positions of the brackets and the gap are provided with buckles, filter screens are arranged among the brackets, the number of the filter screens is four, the top of each filter screen is fixedly connected with an elastic layer, the shape of the buckle is matched with the notch, the cover plate is clamped with the air inlet through a buckle, noise reduction devices are arranged on the front side and the rear side of the air inlet, the noise reduction device is internally provided with a sound insulation foam board, sound absorption cotton is arranged on the foam board, a silencing cover is covered on the rectangular groove, the silencing cover is provided with a plurality of silencing holes, one side of the interior of the waste gas cover close to the panel is provided with a dust filtering layer, an activated carbon adsorption layer is arranged above the dust filtering layer, and a filter is arranged above the activated carbon layer.

Adopt above-mentioned technical scheme, inlay inside the recess through the buckle, make apron and panel connection, and filter large granule magazine through the filter screen, utilize the cushion to cushion the pressure between apron and the panel, play sealed effect simultaneously, prevent that other impurity from entering into waste gas cover inside from the gap, pass to noise reduction device inside sound through the bloop immediately, the cotton noise of waste gas cover at the operation in-process of absorbing of sound absorption among the noise reduction device, thereby reach the effect of noise reduction, and finally, particle impurity in the waste gas is absorbed by the dust filter layer, then adsorb toxic gas by the active carbon adsorbed layer to waste gas, filter again through the filter, can be fast high-efficiently with the exhaust-gas treatment in the workshop clean.

Preferably, the waste gas hood is connected with the exhaust pipe, an air outlet is formed in the top of the waste gas hood, the air outlet is circular, an air outlet seat is arranged at the top of the air outlet, four threaded holes are formed in the air outlet seat, and the bottom of the air outlet seat is fixedly connected with the top of the waste gas hood through screws.

Adopt above-mentioned technical scheme, through the seat that appears of airing exhaust for waste gas cover and blast pipe fixed connection, thereby make gas pass through the blast pipe discharge from waste gas cover inside outdoor.

Preferably, the top of the air outlet seat is connected with the exhaust pipe, a sealing ring is arranged at the joint of the air outlet seat and the exhaust pipe, and the sealing ring is a rubber ring.

By adopting the technical scheme, the sealing performance between the waste gas hood and the exhaust pipe is greatly improved by the arrangement of the sealing ring, and the phenomenon of waste gas leakage is prevented.

Preferably, a support frame is arranged on one side, close to the waste gas hood, of the interior of the exhaust pipe, a volute is fixedly mounted on the support frame, an outlet of the volute faces upwards, an impeller is arranged in the volute, a motor is fixedly mounted on the impeller, and the top of the ventilation pipe extends to the outside through an outer wall.

By adopting the technical scheme, the motor rotates, the impeller rotates, the air is thrown out of the impeller through centrifugal force generated when the impeller rotates and is collected into the volute, and the air enters the exhaust pipe through the outlet of the volute and is exhausted outdoors.

Preferably, a control panel is arranged on the front face of the waste gas hood, a plurality of keys are arranged on the control panel, fixing frames are arranged on the back face of the waste gas hood, the number of the fixing frames is four, and a hood door is arranged on the right side of the waste gas hood.

Adopt above-mentioned technical scheme, through the start-up of control panel controlling means to filter waste gas, the exhaust hood passes through the mount to be fixed on the wall, has further improved the stability of device, and the setting of cover door is convenient for the staff and clears up and change the inside filter equipment of exhaust hood.

Preferably, the exhaust pipe is a stainless steel pipe, and the exhaust gas hood is an acrylic hood.

By adopting the technical scheme, the stainless steel pipe has the advantages of corrosion resistance, acid resistance and the like, the service life of the exhaust pipe is prolonged, the acrylic cover is used, and the working process of the inside of the exhaust cover can be observed by a worker conveniently.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a main sectional view of the present invention;

FIG. 3 is a side sectional view of the noise reducing device of the present invention;

FIG. 4 is a schematic structural view of a part of the assembly of the present invention;

fig. 5 is a schematic view of the internal structure of the panel of the present invention.

Reference numerals: 1. an exhaust hood; 2. an exhaust pipe; 3. a panel; 4. an air inlet; 5. a cover plate; 6. a notch; 7. a groove; 8. a support; 9. buckling; 10. a filter screen; 11. an elastic pad; 12. a sound insulating foam sheet; 13. sound-absorbing cotton; 14. a sound deadening hood; 15. a silencing hole; 16. a dust filter layer; 17. an activated carbon adsorption layer; 18. a filter; 19. an air outlet; 20. an air outlet seat; 21. a screw; 22. a seal ring; 23. a support frame; 24. a volute; 25. a cover door; 26. a motor; 27. a control panel; 28. pressing a key; 29. a fixed mount; 30. a noise reduction device.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

As shown in fig. 1, a high efficiency waste gas draft hood, including exhaust hood 1 and blast pipe 2, exhaust hood 1 is ya keli cover, be convenient for observe the inside condition of exhaust hood 1, be provided with control panel 27 in exhaust hood 1's front, the last a plurality of button 28 that is provided with of control panel 27, through the operation of control panel 27 control exhaust hood 1, back fixedly connected with mount 29 at exhaust hood 1, the quantity of mount 29 is four, fix exhaust hood 1 on the wall through mount 29, be provided with the cover door 25 on exhaust hood 1's right side, the staff of being convenient for clears up and changes the filter equipment of exhaust hood 1 inside.

As shown in fig. 1, the exhaust gas hood 1 includes a panel 3, an air inlet 4 and a cover plate 5, wherein the air inlet 4 and the cover plate 5 are both circular, the diameter of the cover plate 5 is larger than the diameter of the air inlet 4, the air inlet 4 is arranged on the panel 3, the air inlet 4 is circular, two notches 6 are arranged on the edge of the panel 3, which is close to the air inlet 4, the notch 6 is square, the connecting line of the two notches 6 passes through the center of the air inlet 4, two grooves 7 are arranged on the edge of the inner wall of the panel 3, which is close to the air inlet 4, the grooves 7 are the same as the notches 6 in size, the connecting line of the two grooves 7 passes through the center of the air inlet 4, the connecting line of the two grooves 7 is perpendicular to the connecting line of the two notches 6, a bracket 8 is fixedly connected to the corresponding position of the edge of the air inlet 4 on one side of the cover plate 5, the number of, a buckle 9 is fixedly connected at the corresponding position of the bracket 8 and the gap 6, the shape of the buckle 9 is mutually matched with the gap 6, the cover plate 5 is connected with the panel 3 by the buckles 9 embedded in the grooves 7, filter screens 10 are arranged between the brackets 8, the number of the filter screens 10 is four, the large-particle magazines are primarily filtered by the filter screens 10, the top of each filter screen 10 is fixedly connected with an elastic layer which buffers the pressure between the cover plate 5 and the panel 3 and plays a role in sealing, the noise reduction devices 30 are arranged at the front side and the rear side of the air inlet 4, the sound insulation foam board 12 is arranged in the noise reduction devices 30, the sound absorption cotton 13 is arranged on the foam board, the sound absorption cotton 13 is used for absorbing noise, meanwhile, the rectangular groove 7 is covered with a silencing cover 14, silencing holes 15 are formed in the silencing cover 14, the number of the silencing holes 15 is a plurality, and noise generated in the operation process of the exhaust gas cover 1 is reduced through a noise reduction device 30.

As shown in fig. 1, a dust filter layer 16 is fixedly mounted on one side of the inside of the exhaust gas hood 1 close to the panel 3, and is used for absorbing particle impurities in the exhaust gas, an activated carbon adsorption layer 17 is fixedly mounted above the dust filter layer 16 and is used for adsorbing toxic gas in the exhaust gas, and finally, a filter 18 is fixedly mounted above the activated carbon layer and is used for filtering the exhaust gas again through the filter 18, so that a high-efficiency and quick filtering effect is achieved. The exhaust gas cover 1 is connected with the exhaust pipe 2, the exhaust pipe 2 is a stainless steel pipe, the corrosion resistance of the exhaust pipe 2 is improved, the top of the exhaust gas cover 1 is provided with an air outlet 19, the shape of the air outlet 19 is circular, the top of the air outlet 19 is fixedly connected with an air outlet seat 20, the air outlet seat 20 is provided with four threaded holes, the bottom of the air outlet seat 20 is fixedly connected with the top of the exhaust gas cover 1 through screws 21, the exhaust gas cover 1 is fixedly connected with the exhaust pipe 2 through the air outlet seat 20, a sealing ring 22 is embedded at the joint of the air outlet seat 20 and the exhaust pipe 2, the sealing ring 22 is a rubber ring, the leakage phenomenon in the exhaust gas re-emission process is prevented, one side of the exhaust pipe 2, which is close to the exhaust gas cover 1, is fixedly connected with a support frame 23, the support frame 23 is fixedly provided with a volute 24, the outlet of the, the top of the exhaust pipe 2 extends to the outdoor through the outer wall, the rotation of the motor 26 enables the impeller to rotate, and the exhaust gas after deep filtration enters the exhaust pipe 2 from the outlet of the volute 24 and is exhausted to the outdoor through the exhaust pipe 2.

The working principle is as follows: when the device is used, the power supply is turned on through the operation panel 3, the motor 26 rotates, the impeller rotates along with the rotation, meanwhile, the noise reduction device 30 arranged on the cover plate 5 absorbs noise generated in the operation process of the waste gas hood 1, waste gas enters the waste gas hood 1 through the filter screen 10 arranged on the cover plate 5 and sequentially passes through the dust filter layer 16, the activated carbon adsorption layer 17 and the filter 18, particle impurities in the waste gas are absorbed by the dust filter layer 16, then toxic gas is adsorbed by the activated carbon adsorption layer 17, the waste gas in a workshop is filtered through the filter 18, the waste gas in the workshop can be quickly and efficiently treated completely, the treated clean waste gas enters the exhaust pipe 2 from the waste gas hood 1, at this time, the treated clean waste gas is thrown out of the impeller through centrifugal force generated when the impeller rotates and enters the exhaust pipe 2 again through the outlet of the volute 24, finally, the exhaust hood is discharged outdoors, the exhaust hood can quickly and efficiently treat the waste gas in a workshop completely, and the exhaust hood has practicability.

Claims

1. The utility model provides a high efficiency waste gas suction hood, its characterized in that, includes waste gas hood (1) and blast pipe (2), waste gas hood (1) is including panel (3), air intake (4) and apron (5), the shape of air intake (4) and apron (5) is circular, just the diameter of apron (5) is greater than the diameter of air intake (4), air intake (4) are seted up on panel (3), the shape of air intake (4) is circular, two breach (6) have been seted up to the edge that panel (3) are pasting air intake (4), the shape of breach (6) is the square, two the line of breach (6) passes the center of air intake (4), two recess (7) have been seted up to the edge that panel (3) inner wall is pasting air intake (4), recess (7) are unanimous with the shape size of breach (6), the connecting line of the two grooves (7) penetrates through the center of the air inlet (4), the connecting line of the two grooves (7) is perpendicular to the connecting line of the two notches (6), the number of the supports (8) is four, the supports (8) are uniformly distributed on the cover plate (5), the corresponding positions of the supports (8) and the notches (6) are provided with buckles (9), filter screens (10) are arranged between the supports (8), the number of the filter screens (10) is four, the top of each filter screen (10) is fixedly connected with an elastic pad (11), the shapes of the buckles (9) are mutually matched with the notches (6), and the cover plate (5) is clamped with the air inlet (4) through the buckles (9), both sides all are provided with noise reduction device (30) around air intake (4), noise reduction device (30) inside is provided with sound insulation cystosepiment (12), be provided with on the cystosepiment and inhale sound cotton (13), rectangle recess (7) upper shield is equipped with amortization cover (14), amortization hole (15) have been seted up on amortization cover (14), the quantity of amortization hole (15) is a plurality of, one side that the inside of exhaust gas cover (1) is close to panel (3) is provided with dust filter layer (16), the top of dust filter layer (16) is provided with activated carbon adsorption layer (17), the top on activated carbon layer is provided with filter (18).

2. The high-efficiency exhaust gas draft hood according to claim 1, wherein the exhaust gas hood (1) is connected to the exhaust pipe (2), an air outlet (19) is formed in the top of the exhaust gas hood (1), the air outlet (19) is circular in shape, an air outlet seat (20) is arranged at the top of the air outlet (19), four threaded holes are formed in the air outlet seat (20), and the bottom of the air outlet seat (20) is fixedly connected to the top of the exhaust gas hood (1) through screws (21).

3. The high-efficiency exhaust gas draft hood according to claim 2, wherein the top of the air outlet seat (20) is connected with an exhaust pipe, a sealing ring (22) is arranged at the joint of the air outlet seat (20) and the exhaust pipe (2), and the sealing ring (22) is a rubber ring.

4. The high-efficiency exhaust gas draft hood according to claim 3, wherein a support frame (23) is arranged on one side of the inside of the exhaust pipe (2) close to the exhaust gas hood (1), a volute (24) is fixedly mounted on the support frame (23), an outlet of the volute (24) faces upwards, an impeller is arranged inside the volute (24), a motor (26) is fixedly mounted on the impeller, and the top of the exhaust pipe extends to the outside through an outer wall.

5. The high-efficiency exhaust gas draft hood according to claim 1, wherein a control panel (27) is disposed on the front surface of the exhaust gas hood (1), a plurality of keys (28) are disposed on the control panel (27), a number of fixing frames (29) is disposed on the back surface of the exhaust gas hood (1), the number of the fixing frames (29) is four, and a hood door (25) is disposed on the right side of the exhaust gas hood (1).

6. The high efficiency exhaust hood according to claim 1, wherein the exhaust pipe (2) is a stainless steel pipe, and the exhaust hood (1) is an acrylic hood.