CN104791872B

CN104791872B - Bladeless cooking fume suction device

Info

Publication number: CN104791872B
Application number: CN201510206114.6A
Authority: CN
Inventors: 李晓星
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2015-04-27
Filing date: 2015-04-27
Publication date: 2017-05-17
Anticipated expiration: 2035-04-27
Also published as: CN104791872A

Abstract

The invention discloses a bladeless cooking fume suction device, which comprises a collection shell lower section, a collection shell middle section, an air nozzle, an air distribution hood and an air compressing device, wherein the air nozzle comprises an outer shell, an inner shell and an air flow channel, a baffle and a flow blocking lug are arranged on the inner shell; the air flow channel is formed between the outer and inner shells; an air spraying opening is formed in the air nozzle; the air distribution hood is provided with a hood front section and a hood outer wall; the air compressing device is provided with a shell and an air compressing fan; the shell comprises an end cover, multiple air suction openings, a grid body and multiple air suction channels; the end cover is fixedly connected to the front end of the shell; the air suction openings are uniformly distributed in the edge of the end cover; the back end of the grid body is fixedly connected to the middle part of the shell; the front end of the grid body is fixedly connected to the edge of the end cover. The bladeless cooking fume suction device is high in suction efficiency, safe to use, low in noise, free of vibration, long in service life, unlikely to accumulate oil stains and easy to clean and wash.

Description

One kind is without leaf fume exhaust device

Technical field

The present invention relates to smoke exhaust ventilator technical field, and in particular to one kind is without leaf fume exhaust device.

Background technology

The oil smoke produced in cooking process is one of primary pollution source of room air, not only serious harm health, And the condensation adhesion of oil smoke can affect the environmental quality of kitchen and ambient indoor.With deepening continuously for China's economy, The development that the tertiary industry is advanced by leaps and bounds, food and restaurant service industry is such as emerged rapidly in large numbersBamboo shoots after a spring rain, hotel, soon food shop, snack bar, convenience-for-people shop, diet The group of booths, stalls and outdoor barbecue etc. are found everywhere, its prosperity urban economy, have promoted the development in city, while also bringing to environment Pollution, without control discharge, the abnormal flavour in oil smoke causes the complaint of resident in ascendant trend year by year to the oil smoke that most of eating and drinking establishment produces. China's fume pollution preventing and treating is started late, and how efficient trapping oil smoke is always in the core of smoke exhaust ventilator design and research Hold, good room ventilation condition is kept for many years or smoke exhaust ventilator and exhaust fan are set in kitchen, be most eating and drinking establishment The method for being adopted.At present, lampblack absorber crosses the mode of filtering fume and mainly adopts metal net mask, especially the metal of little mesh Net, this mode cannot fundamentally separate oil smoke so that it is without dismantling and cleaning can only on a spoken level, the actually application of the oil network Make the cycle stretch-out for unpicking and washing lampblack absorber.

It is to be carried by multiple duct hair-dryers 6 without leaf smoke exhaust ventilator that Chinese patent CN201320002902.X discloses one kind For power, Jing annular collector ring 1 gas collection superchargings, then high-speed annular gas upwards is formed in exhaust gases passes by round wind outlet 2 Stream, so as to drive flue gas to enter exhaust gases passes and discharge, reaches lampblack-pumped purpose.But invention pumping efficiency is not high for this, make an uproar Sound is big, vibrations are big, and service life is limited.

Chinese patent CN201320158782.2 discloses a kind of new without leaf smoke exhaust ventilator, and the smoke exhaust ventilator includes sky Air compressor, air-supply pipeline, lubricating cup, filter screen, annular airstream deflector, air inlet, without flabellum ventilation head and exhaust passage；The smoke pumping Machine has an annular airstream deflector, and the airstream deflector is located at kitchen range top periphery；The airstream deflector is connected with air-supply pipeline；The air-supply pipeline Pressure-air is provided by air compressor；The air compressor is located at ground, another road pressure-air Jing air-supplies for being provided Pipeline is to without flabellum ventilation head；It is described to be located in exhaust passage without flabellum ventilation head；The exhaust passage is built with identical with its internal diameter Grafting filter screen；The filter screen bottom is externally connected to lubricating cup positioned at exhaust passage；The exhaust passage initiating terminal is connected with horn-like Air inlet, the air inlet is located at the surface of the kitchen range top and aligns with annular airstream deflector, and this is new to lead without the employing of flabellum smoke exhaust ventilator Cigarette adds the thought of smoking, easy to use with simple structure, and pumping efficiency is high, the advantages of using safety, life-span length.But should Smoke extractor cannot solve the problems, such as that oil smoke condenses aggregation in pipeline, clean inconvenient.

Therefore it is badly in need of a kind of pumping efficiency high, using safety, little, without friction noise, life-span length, is difficult to be enriched with greasy dirt, clear Wash convenient without leaf fume exhaust device.

The content of the invention

The present invention is directed to the problems referred to above, there is provided a kind of pumping efficiency is high, using safety, little, without friction noise, life-span length, It is difficult to be enriched with greasy dirt, easy to clean without leaf fume exhaust device.

The present invention the adopted technical scheme that solves the above problems is：One kind without leaf fume exhaust device, wherein, including：Receive Collection shell hypomere, the collection shell hypomere has a hypomere cavity；Shell stage casing is collected, the collection shell stage casing is fixedly connected on collection The upper end of shell hypomere, the collection shell stage casing is cylindrical in shape, and the collection shell stage casing has stage casing cavity, and the stage casing cavity is with Section cavity connects；Air nozzle, the upper end that the air nozzle has shell, inner shell and flow channel, the inner shell is fixedly connected on The upper end in shell stage casing is collected, the inner shell is provided with baffle plate and choked flow ear, and the baffle plate extends to flow channel, and the choked flow ear prolongs Flow channel is extended, the flow channel is located between shell and inner shell, and the flow channel includes leading portion runner, the stage casing of insertion successively Runner and back segment runner, the air nozzle also has puff prot, and the puff prot is located between the upper end of shell and choked flow ear, spray One end of QI KOU connects with back segment runner, and the other end and the stage casing cavity of puff prot connect；Divide fan housing, described point of fan housing tool There are a cover leading portion and cover outer wall, the cover leading portion extends to hypomere cavity, and the cross section of the cover outer wall is curved, outside the cover Several supporters are uniformly fixed with wall, the front end of supporter is fixedly connected on the inwall for collecting shell stage casing；Compressing device, The compressing device has housing and fan of calming the anger, and the housing is fixedly connected on the lower end of air nozzle, and the fan of calming the anger is rotatable Be arranged on housing, and be contained in the accommodating chamber of housing, if the housing have end cap, several air entries, grid body and Dry aspirating unit, the end cap is fixedly connected on the front end of housing, and described several air entries are evenly distributed on the edge of end cap, The rear end of the grid body is fixedly connected on the middle part of housing, and the front end of grid body is fixedly connected on the edge of end cap, it is described several Aspirating unit be located at grid body outer wall and the inwall of housing between, one end and the air entry of aspirating unit connect, aspirating unit it is another End connects with the accommodating chamber of housing.

As shown from the above technical solution, collect shell hypomere and collect the setting in shell stage casing, easily when compressing device works Negative pressure is formed, a large amount of oil smoke are collected, the setting of baffle plate accelerates the flow velocity of compressed air stream, while so that compressed air stream is in back segment runner Interior pressure increases, furthermore such that the air-flow of leading portion runner accelerates air stream at flowing, and then the air entry of acceleration compressing device Speed, choked flow ear causes compressed air stream speedup again, while reducing noise, choked flow ear also makes the air-flow at puff prot powerful uniform, Puff prot causes compressed air stream to collect on stage casing cavity top so that negative pressure is formed at stage casing cavity bottom, accelerates oil smoke to absorb, should Without leaf fume exhaust device throughput is big, lifting suction big, thus pumping efficiency is high, and in addition greasy dirt is not easy-adhesion, reduces and cleans, and prolongs Service life is grown.

Further, the housing also has inlet chamber, several guide plates and several grid mouths, and the inlet chamber is located at End cap and calm the anger between fan, described several guide plates are fixedly installed on the inner side of end cap, and guide plate to inlet chamber extends, described Several grid mouths be located at grid body leading section and guide plate between, one end of the grid mouth connects with inlet chamber, grid mouth it is another One end connects with aspirating unit.

As shown from the above technical solution, the setting of inlet chamber accelerates the flowing of air at air entry, while storing up for fan of calming the anger Standby sufficient air, raising is calmed the anger efficiency and increase throughput, and being provided for of guide plate reduces noise, improves air from grid mouth To the speed of inlet chamber flowing, the return of air-flow when the setting of guide plate also hinders to calm the anger.

Further, the grid body is provided with side port, and one end and the aspirating unit of the side port connect, side port it is another End connects with the accommodating chamber of housing, and the housing also has air vent and several connectors, and the air vent is located at housing Outer wall top, air vent connects with the accommodating chamber of housing, and one end of the connector is fixedly connected on the inwall of housing, company The other end of junctor is fixedly connected on the edge of end cap.

As shown from the above technical solution, the setting of side port accelerates the entrance of air-flow, improves the efficiency of calming the anger of fan of calming the anger,

Further, the compressing device also has to calm the anger and motor and calms the anger, and the motor of calming the anger is fixedly installed on The rear end of housing, the output shaft of motor of calming the anger is connected with fan of calming the anger, and the fan of calming the anger is described to calm the anger with several leaves of calming the anger Road is located at and calms the anger between the outer rim of leaf and the inwall of housing, calms the anger and inlet chamber and the equal insertion of side port.

As shown from the above technical solution, the setting calmed the anger accelerates air velocity, improves air inlet, reduces resistance of calming the anger Power, while reduce the energy expenditure of motor of calming the anger, the fan that also makes to calm the anger operates steadily, noise when reduction is calmed the anger, and raising is calmed the anger effect Rate.

Further, described point of fan housing also has cover inwall, flange and several cage apertures, and the cross section of the cover inwall is in Arc, one end of the flange is connected with the top of cover inwall, and the other end of flange is connected with the top of cover outer wall.

Further, the collection shell stage casing also has collection chamber and an accelerating cavity, the collection chamber be located at cover outer wall with Collect between the inwall in shell stage casing, the accelerating cavity be located at flange and collect shell stage casing inwall between, the collection chamber with plus Fast chamber connects, and the cage apertures is through collection chamber and stage casing cavity.

As shown from the above technical solution, the structure causes the air-flow at collection chamber to accelerate to collect, and air and oil smoke mutually coagulate Knot so that oil smoke is accelerating intracavity to pass through at a high speed, reduces adhesion of the oil smoke on the inwall for collecting shell stage casing, and the setting of cage apertures adds Passing through for fast air and oil smoke, improves oil smoke absorbance, while reducing noise when oil smoke flows, the cross section of cover inwall is in arc Shape causes air-flow to reduce through rear noise from cage apertures, and the cross section of cover outer wall is also curved, and then improves oil smoke flowing velocity, subtracts Few oil smoke flow noise, reduction oil smoke adhesion.

Further, the air nozzle also has gather qi together chamber, gather qi together mouth and back cavity, the gather qi together chamber and leading portion runner Mutually run through, side and the gather qi together mouth in the gather qi together chamber connect, and the gather qi together mouth connects with air vent, and the back cavity is located at Between the inwall of baffle plate and the inwall of inner shell, and back cavity connects with back segment runner.

As shown from the above technical solution, gather qi together chamber causes compressed air stream to collect and be uniformly distributed, in balanced stage casing cavity Adsorptive pressure, reduce vibration and noise, when the setting of back cavity causes compressed air stream flow in back segment runner noise reduction, Compressed air stream is reduced simultaneously and forms vortex, reduce cavitation.

Further, the cross section of the baffle plate is curved, and the front end of the baffle plate extends to back segment runner, described poly- Annular in shape, the circular in cross-section in gather qi together chamber of air cavity.

As shown from the above technical solution, the cross section of baffle plate is curved so that noise when compressed air stream accelerates is reduced.

Further, also including shell epimere and air draft shell is collected, the collection shell epimere is fixedly connected on the upper end of shell, The collection shell epimere has epimere cavity, and the epimere cavity connects with stage casing cavity, and the air draft shell is fixedly connected on The top of shell epimere is collected, the air draft shell has air draft chamber, and the air draft chamber connects with epimere cavity.

As shown from the above technical solution, collect shell epimere and collect oil smoke mixed gas, air draft shell is used for oil smoke gaseous mixture Body is discharged.

Further, also including protective cover, one end of the protective cover is fixedly connected on collection shell epimere, protective cover The other end be fixedly connected on collection shell hypomere on.

As shown from the above technical solution, protective cover is used to protect air nozzle and compressing device, it is to avoid air nozzle and dress of calming the anger Put and collided with, while protecting personal safety, it is to avoid injury of the high pressure draught to people.

It is an advantage of the invention that：Smoking efficiency high, life-time service need not be cleared up, therefore safety, in addition noise it is little, without shaking Dynamic so that life-span length, in addition greasy dirt is difficult to condense, and reduces wash number, also causes cleaning more convenient.

In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages. Below with reference to figure, the present invention is further detailed explanation.

Description of the drawings

Constitute the part of this specification, the accompanying drawing for further understanding the present invention and show being preferable to carry out for the present invention Example, and be used for illustrating the principle of the present invention together with description.In the accompanying drawings：

Fig. 1 is the sectional view of the present invention；

Fig. 2 is the partial sectional view of the present invention；

Fig. 3 is the sectional view of the compressing device of the present invention；And

Fig. 4 is the sectional view of point fan housing of the present invention.

Wherein, it is labeled as in figure：

100 for collect shell hypomere, 101 be hypomere cavity, 200 for collect shell stage casing, 201 be stage casing cavity, 202 to collect Chamber, 203 be accelerating cavity, 300 for collect shell epimere, 301 be epimere cavity, 400 be air draft shell, 401 be air draft chamber, 500 for spray Valve, 501 be shell, 502 be inner shell, 503 be gather qi together chamber, 504 be gather qi together mouth, 505 be leading portion runner, 506 be stage casing runner, 507 it is baffle plate, 508 be back segment runner, 509 be choked flow ear, 510 be puff prot, 511 be back cavity, 600 be a point fan housing, 601 is Supporter, 602 be cover leading portion, 603 be cover outer wall, 604 be cage apertures, 605 be flange, 606 be cover inwall, 700 be compressing device, 701 is housing, 702 is inlet chamber, 703 is end cap, 704 is air entry, 705 is grid mouth, 706 is aspirating unit, 707 is side port, 708 for motor of calming the anger, 709 be leaf of calming the anger, 710 be air vent, 711 to calm the anger, 712 be grid body, 713 be guide plate, 714 be Connector, 800 are protective cover.

Specific embodiment

Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be defined by the claims Implement with the multitude of different ways for covering.

Referring to figs. 1 to Fig. 4, one kind as shown in Figure 1 without leaf fume exhaust device, wherein, this includes without leaf fume exhaust device Shell hypomere 100 is collected, shell stage casing 200, air nozzle 500 is collected, is collected shell epimere 300, air draft shell 400, point fan housing 600 and calm the anger Device 700, collects shell hypomere 100 and has a hypomere cavity 101, collects shell stage casing 200 and is fixedly connected on collection shell hypomere 100 Upper end, collection shell stage casing 200 is cylindrical in shape, collects shell stage casing 200 and has stage casing cavity 201, stage casing cavity 201 and hypomere cavity 101 connect, and when compressing device 700 works, collect the hypomere cavity 101 of shell hypomere 100 and the stage casing in collection shell stage casing 200 Negative pressure is formed in cavity 201, negative pressure causes oil smoke and air flows upwards in hypomere cavity 101, reach a large amount of oil smoke of collection Effect, air nozzle 500 is fixedly connected on the upper end for collecting shell stage casing 200, and extends to the outside of shell stage casing 200 is collected, and receives Collection shell epimere 300 is fixedly connected on the top of air nozzle 500, more specifically, collecting shell epimere 300 is fixedly connected on shell 501 Upper end, collect shell epimere 300 and there is epimere cavity 301, collect shell epimere 300 and collect oil smoke mixed gas, epimere cavity 301 Connect with stage casing cavity 201, air draft shell 400 is fixedly connected on the top for collecting shell epimere 300, air draft shell 400 has air draft Chamber 401, air draft chamber 401 connects with epimere cavity 301, and air draft shell 400 is used to discharge oil smoke mixed gas, point fan housing 600 It is connected with the inwall for collecting shell stage casing 200 by uniform several fixed supporters 601 on cover outer wall 603, supporter 601 Front end be fixedly connected on the inwall for collecting shell stage casing 200, compressing device 700 is fixedly connected on the lower end of air nozzle 500.

This also includes protective cover 800 without leaf fume exhaust device, and one end of protective cover 800 is fixedly connected on collection shell epimere On 300, the other end of protective cover 800 is fixedly connected on collection shell hypomere 100, and protective cover 800 is mainly for the protection of air nozzle 500 and compressing device 700, it is to avoid air nozzle 500 and compressing device 700 are collided with, while protecting personal safety, it is to avoid high pressure Injury of the air-flow to people.

As shown in Fig. 2 air nozzle 500 has shell 501, inner shell 502 and flow channel, the upper end of inner shell 502 is fixedly connected In the upper end for collecting shell stage casing 200, inner shell 502 is provided with baffle plate 507 and choked flow ear 509, and baffle plate 507 extends to flow channel, gear The cross section of plate 507 is curved, and noise when arc causes compressed air stream to accelerate is reduced, and choked flow ear 509 extends to flow channel, gas Runner be located between shell 501 and inner shell 502, flow channel include successively the leading portion runner 505 of insertion, stage casing runner 506 and after Duan Liudao 508, the front end of baffle plate 507 extends to back segment runner 508, air nozzle 500 also have puff prot 510, gather qi together chamber 503, Gather qi together mouth 504 and back cavity 511, puff prot 510 is located between the upper end of shell 501 and choked flow ear 509, and the one of puff prot 510 End connects with back segment runner 508, and the other end and the stage casing cavity 201 of puff prot 510 connect, gather qi together chamber 503 and leading portion stream Road 505 mutually runs through, and side and the gather qi together mouth 504 in gather qi together chamber 503 connect, gather qi together chamber 503 it is annular in shape, and be centered around collection shell The outer wall in stage casing 200, the circular in cross-section in gather qi together chamber 503, gather qi together mouth 504 connects with air vent 710, back cavity 511 Between the inwall of baffle plate 507 and the inwall of inner shell 502, and back cavity 511 connects with back segment runner 508, and compressed gas is flowed through Gather qi together mouth 504 is entered in gather qi together chamber 503, then reaches puff prot 510 from the Jing flow channels of gather qi together chamber 503, and compressed air stream is finally by spraying Stage casing cavity 201 is sprayed at QI KOU 510 so that stage casing cavity 201 forms negative pressure so that oil smoke and air rise Jing air draft chambers 401 reclaim discharge, and compressed gas flows through the stop of baffle plate 507, and then compressed air stream is accelerated, while compressed air stream is in back segment stream Pressure in road 508 increases, and in addition the compressed air stream in leading portion runner 505 also accelerates flowing, and then the air-breathing of compressing device 700 Air at mouth 704 rapidly flows into aspirating unit 706, and gather qi together chamber 503 causes compressed air stream to collect and be uniformly distributed, in energy equilibrium Adsorptive pressure in section cavity 201, reduces vibration and noise, and back cavity 511 causes compressed air stream flowing in back segment runner 508 When noise reduce, while reduce compressed air stream formed vortex, reduce cavitation.

Compressed gas flows through the speedup again of choked flow ear 509, and the cross section of choked flow ear 509 is curved, and arc can reduce noise, Choked flow ear 509 also makes the air-flow at puff prot 510 powerful uniform, and puff prot 510 causes compressed air stream on the top of stage casing cavity 201 Collect so that negative pressure is formed at the bottom of stage casing cavity 201, accelerate oil smoke to absorb, this without leaf fume exhaust device throughput it is big, rise and inhale Power is big, thus pumping efficiency is high, and in addition greasy dirt is not easy-adhesion, reduces cleaning, extends service life.

As shown in figure 3, compressing device 700 has housing 701 and fan of calming the anger, housing 701 is fixedly connected on air nozzle 500 Lower end, fan of calming the anger can be rotatably set on housing 701, and be contained in the accommodating chamber of housing 701, and housing 701 has end cap 703rd, several air entries 704, grid body 712 and several aspirating units 706, end cap 703 is fixedly connected on the front end of housing 701, Several air entries 704 are evenly distributed on the edge of end cap 703, and the rear end of grid body 712 is fixedly connected on the middle part of housing 701, The front end of grid body 712 is fixedly connected on the edge of end cap 703, and several aspirating units 706 are located at the outer wall and housing of grid body 712 Between 701 inwall, one end and the air entry 704 of aspirating unit 706 connect, the other end of aspirating unit 706 and the appearance of housing 701 Receiving chamber connects, and grid body 712 is provided with side port 707, and one end and the aspirating unit 706 of side port 707 connect, side port 707 it is another End connects with the accommodating chamber of housing 701, and the setting of side port 707 accelerates the entrance of air-flow, increases air capacity, improves and calms the anger The efficiency of calming the anger of fan, housing 701 also has inlet chamber 702, several guide plates 713, several grid mouths 705, motor 708 of calming the anger With calm the anger 711, inlet chamber 702 is located at end cap 703 and calms the anger between fan, and the setting of inlet chamber 702 can speed up air entry 704 The flowing of place's air, the flow faster of air can be just the sufficient air of fan deposit of calming the anger, and several guide plates 713 are fixed and set Put in the inner side of end cap 703, guide plate 713 to inlet chamber 702 extends, several grid mouths 705 be located at grid body 712 leading section and Between guide plate 713, one end and the inlet chamber 702 of grid mouth 705 connect, and the other end and the aspirating unit 706 of grid mouth 705 are mutually passed through Logical, the one side of guide plate 713 is used to reduce the noise produced during air flow, on the other hand accelerates air from grid mouth 705 to entering The speed of the flowing of air cavity 702, the return of air-flow when in addition guide plate 713 also hinders to calm the anger, the air utilization ratio for making entrance is improved, Motor 708 of calming the anger is fixedly installed on the rear end of housing 701, and the output shaft of motor 708 of calming the anger is connected with fan of calming the anger, fan tool of calming the anger Have several leaves 709 of calming the anger, calm the anger 711 be located at calm the anger between the outer rim of leaf 709 and the inwall of housing 701, calm the anger 711 with Inlet chamber 702 and the equal insertion of side port 707, calming the anger 711 can accelerate air velocity, and reduction is calmed the anger the energy expenditure of motor 708, The fan that makes to calm the anger operates steadily, noise when reduction is calmed the anger, and raising is calmed the anger efficiency.

Housing 701 also has air vent 710 and several connectors 714, and air vent 710 is located on the outer wall of housing 701 Side, air vent 710 connects with the accommodating chamber of housing 701, and one end of connector 714 is fixedly connected on the inwall of housing 701, even The other end of junctor 714 is fixedly connected on the edge of end cap 703.

As shown in figure 4, point fan housing 600 has a cover leading portion 602, cover outer wall 603, cover inwall 606, flange 605 and some Individual cage apertures 604, cover leading portion 602 extends to hypomere cavity 101, and the cross section of cover outer wall 603 is curved, cover inwall 606 it is transversal Face is curved, and one end of flange 605 is connected with the top of cover inwall 606, the other end of flange 605 and the top of cover outer wall 603 End is connected.The aggregated chamber 202 of oil smoke is entered in accelerating cavity 203, and the accelerated high speed of chamber 203 of oil smoke enters stage casing cavity 201, so Rise afterwards and discharge.

As shown in Figure 1 and Figure 4, collect shell stage casing 200 and also there is collection chamber 202 and accelerating cavity 203, collection chamber 202 is located at Between the inwall in cover outer wall 603 and collection shell stage casing 200, accelerating cavity 203 is located at flange 605 and collects the inwall in shell stage casing 200 Between, collection chamber 202 connects with accelerating cavity 203, and cage apertures 604 is through collection chamber 202 and stage casing cavity 201.

The preferred embodiments of the present invention are these are only, the present invention is not limited to, for those skilled in the art For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, Equivalent, improvement etc., should be included within the scope of the present invention.

Claims

1. one kind is without leaf fume exhaust device, it is characterised in that include：

Shell hypomere (100) is collected, collection shell hypomere (100) is with a hypomere cavity (101)；

Shell stage casing (200) is collected, shell stage casing (200) of collecting is fixedly connected on the upper end for collecting shell hypomere (100), the receipts Collection shell stage casing (200) is cylindrical in shape, collection shell stage casing (200) with stage casing cavity (201), the stage casing cavity (201) with Hypomere cavity (101) connects；

Air nozzle (500), the air nozzle (500) is with shell (501), inner shell (502) and flow channel, the inner shell (502) Upper end be fixedly connected on the upper end for collecting shell stage casing (200), the inner shell (502) is provided with baffle plate (507) and choked flow ear (509), the baffle plate (507) extends to flow channel, and the choked flow ear (509) extends to flow channel, and the flow channel is located at outer Between shell (501) and inner shell (502), the flow channel include successively the leading portion runner (505) of insertion, stage casing runner (506) and Back segment runner (508), the air nozzle (500) also has puff prot (510), and the puff prot (510) is positioned at shell (501) Between upper end and choked flow ear (509), one end and the back segment runner (508) of puff prot (510) connect, puff prot (510) it is another One end connects with stage casing cavity (201)；

Divide fan housing (600), described point of fan housing (600) is with a cover leading portion (602) and cover outer wall (603), the cover leading portion (602) Hypomere cavity (101) is extended to, the cross section of the cover outer wall (603) is curved, is uniformly fixed with the cover outer wall (603) Several supporters (601), the front end of supporter (601) is fixedly connected on the inwall for collecting shell stage casing (200)；

Compressing device (700), with housing (701) and fan of calming the anger, the housing (701) is fixed to be connected the compressing device (700) The lower end of air nozzle (500) is connected on, the fan of calming the anger can be rotatably set on housing (701), and is contained in housing (701) Accommodating chamber, the housing (701) is with end cap (703), several air entries (704), grid body (712) and several aspirating units (706), the end cap (703) is fixedly connected on the front end of housing (701), and described several air entries (704) are evenly distributed on The edge of end cap (703), the rear end of the grid body (712) is fixedly connected on the middle part of housing (701), the front end of grid body (712) It is fixedly connected on the edge of end cap (703), outer wall and housing (701) of described several aspirating units (706) positioned at grid body (712) Inwall between, one end and the air entry (704) of aspirating unit (706) connect, the other end and housing of aspirating unit (706) (701) accommodating chamber connects.

2. it is according to claim 1 without leaf fume exhaust device, it is characterised in that the housing (701) also has inlet chamber (702), several guide plates (713) and several grid mouths (705), the inlet chamber (702) is positioned at end cap (703) and fan of calming the anger Between, described several guide plates (713) are fixedly installed on the inner side of end cap (703), and guide plate (713) is to inlet chamber (702) Extend, described several grid mouths (705) between the leading section of grid body (712) and guide plate (713), the grid mouth (705) One end connect with inlet chamber (702), the other end and the aspirating unit (706) of grid mouth (705) connect.

3. it is according to claim 2 without leaf fume exhaust device, it is characterised in that the grid body (712) is provided with side port (707), one end of the side port (707) connects with aspirating unit (706), the other end of side port (707) and the appearance of housing (701) Receiving chamber connects, and the housing (701) also has air vent (710) and several connectors (714), the air vent (710) Positioned at the outer wall top of housing (701), air vent (710) connects with the accommodating chamber of housing (701), the connector (714) One end be fixedly connected on the inwall of housing (701), the other end of connector (714) is fixedly connected on the edge of end cap (703).

4. it is according to claim 3 without leaf fume exhaust device, it is characterised in that the compressing device (700) also has pressure Pneumatic generator (708) and calm the anger (711), the motor of calming the anger (708) is fixedly installed on the rear end of housing (701), motor of calming the anger (708) output shaft is connected with fan of calming the anger, and described calming the anger is fanned with several leaves of calming the anger (709), described (711) position of calming the anger Between the outer rim of leaf of calming the anger (709) and the inwall of housing (701), calm the anger (711) and inlet chamber (702) and side port (707) Insertion.

5. it is according to claim 1 without leaf fume exhaust device, it is characterised in that described point of fan housing (600) also has in cover Wall (606), flange (605) and several cage apertures (604), the cross section of the cover inwall (606) is curved, the flange (605) one end is connected with the top of cover inwall (606), and the other end of flange (605) is connected with the top of cover outer wall (603) Connect.

6. it is according to claim 5 without leaf fume exhaust device, it is characterised in that the collection shell stage casing (200) also has Collection chamber (202) and accelerating cavity (203), the collection chamber (202) is interior with collection shell stage casing (200) positioned at cover outer wall (603) Between wall, the accelerating cavity (203) positioned at flange (605) and collect shell stage casing (200) inwall between, the collection chamber (202) connect with accelerating cavity (203), the cage apertures (604) is through collection chamber (202) and stage casing cavity (201).

7. it is according to claim 1 without leaf fume exhaust device, it is characterised in that the air nozzle (500) also has gather qi together Chamber (503), gather qi together mouth (504) and back cavity (511), the gather qi together chamber (503) is mutually run through with leading portion runner (505), described poly- The side of air cavity (503) connects with gather qi together mouth (504), and the gather qi together mouth (504) connects with air vent (710), described time Stream chamber (511) is between the inwall of baffle plate (507) and the inwall of inner shell (502), and back cavity (511) and back segment runner (508) connect.

8. it is according to claim 7 without leaf fume exhaust device, it is characterised in that the cross section of the baffle plate (507) is in arc Shape, the front end of the baffle plate (507) extends to back segment runner (508), annular in shape, gather qi together chamber (503) of the gather qi together chamber (503) Circular in cross-section.

9. it is according to claim 1 without leaf fume exhaust device, it is characterised in that also including collection shell epimere (300) and row The crust of weathering (400), it is described to collect the upper end that shell epimere (300) is fixedly connected on shell (501), collection shell epimere (300) tool There is epimere cavity (301), the epimere cavity (301) connects with stage casing cavity (201), the air draft shell (400) is fixed to be connected Be connected on the top for collecting shell epimere (300), the air draft shell (400) with air draft chamber (401), the air draft chamber (401) with it is upper Section cavity (301) connects.

10. it is according to claim 9 without leaf fume exhaust device, it is characterised in that also including protective cover (800), the guarantor One end of shield (800) is fixedly connected in collection shell epimere (300), and the other end of protective cover (800) is fixedly connected on collection On shell hypomere (100).