CN2349477Y - Cooking fume exhauster - Google Patents
Cooking fume exhauster Download PDFInfo
- Publication number
- CN2349477Y CN2349477Y CN 98244783 CN98244783U CN2349477Y CN 2349477 Y CN2349477 Y CN 2349477Y CN 98244783 CN98244783 CN 98244783 CN 98244783 U CN98244783 U CN 98244783U CN 2349477 Y CN2349477 Y CN 2349477Y
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- CN
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- Prior art keywords
- smoke exhaust
- fan
- pipe
- casing
- motor
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- Expired - Fee Related
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Abstract
The utility model relates to an oil fume exhauster, comprising a fume collecting hood, a fume exhausting pipe, and a ventilator. The utility model is characterized in that the utility model also comprises a fume sucking pipe; both ends of the fume sucking pipe are respectively communicated with the fume collecting hood and the tail part of the fume exhausting pipe; the ventilator is arranged at the tail part of the fume exhausting pipe; the tail part of the fume exhausting pipe is also provided with a conical air injecting pipe whose injecting opening is corresponding to a connecting pipe seat of the fume exhausting pipe; the diameter of the injecting opening of the air injecting pipe is not more than 1/2 of the fume exhausting pipe; an air inlet of the air injecting pipe is communicated with an air outlet of the ventilator; a centrifugal ventilator or a more-level fan axial flow ventilator can be used. The utility model can prevent oil fume from polluting blades of a fan, can reduce the cleaning for the oil fume exhauster and can raise the efficiency of the ventilator.
Description
The utility model belongs to smoke exhaust.
Existing smoke exhaust generally is the ventilation blower smoke pumping and discharges from smoke exhaust pipe, contact with the fan leaf in the oil smoke discharge process that greasy dirt is just sticking to be amassed at fan leaf even motor, cause rotate ineffective, air draft is smooth, increasing motor load and oil dripping dirt, and clean difficulty, and must integral body unload cleaning, the gap between the fan leaf is narrow, be difficult to clean up, blast fan imbalance when adorning has again increased noise and vibration, and adopts parts more.
The purpose of this utility model is the above-mentioned weak point that overcomes existing smoke exhaust, and a kind of oil smoke pickup fan leaf, smoke exhaust simple in structure avoided is provided.
The utility model is the basic principle that forms negative pressure according to the gas that flows with certain speed in the hydrodynamics in the side, ventilation blower flows through with certain speed wind from smoke exhaust pipe, the smoke exhaust pipe side forms negative pressure and discharges from smoke exhaust pipe from smoke extracting tube suction flue gas and with flue gas.
The utility model is taked following structure, and it comprises exhaust fume collecting hood, smoke exhaust pipe, ventilation blower, it is characterized in that: also have smoke extracting tube, an end of smoke extracting tube is connected logical with exhaust fume collecting hood, and the other end is connected logical by the side connection base of smoke exhaust pipe afterbody with smoke exhaust pipe; Ventilation blower is installed in the afterbody of smoke exhaust pipe from the back of smoke exhaust pipe, the afterbody of smoke exhaust pipe is also installed a tapered air jet pipe, the nozzle exit area of air jet pipe is corresponding with the connection base of smoke exhaust pipe, the nozzle diameter of air jet pipe is not more than 1/2 of smoke exhaust pipe, and the air inlet of air jet pipe communicates with the gas outlet of ventilation blower.Adopt the exhaust fume collecting hood of falling the infundibulate better.
Above-mentioned smoke exhaust is characterized in that: said ventilation blower is a centrifugal fan.
Above-mentioned smoke exhaust, it is characterized in that: said ventilation blower be the multistage fan axial fan, multistage fan axial fan casing inside circumference distribution outer end is fixed on the fixed blade of casing and forms some groups of leaf gratings, one all fixed blades are formed one group of leaf grating, leaf grating is arranged between the fan of multistage fan, and fixed blade between the multistage fan and multistage fan axial fan axioversion are installed.Multistage fan can be installed in shaft of motor or motor casing.
Above-mentioned smoke exhaust is characterized in that: there are the entry guide vane grid multistage fan inlet side at the multistage fan axial fan, and the exit guide blade grid are arranged in the air side.
Above-mentioned smoke exhaust is characterized in that; Said air jet pipe be provided with deep bead outward, the profile of deep bead and the inboard of smoke exhaust pipe match.
Above-mentioned smoke exhaust, it is characterized in that: the motor of said multistage fan axial fan is an external-rotor motor, the stator core of external-rotor motor is cylindrical, at the cylindrical of the stator core wire casing that evenly distributes, the lead of stator winding embeds in wire casing, stator core is fixed on the external-rotor motor arbor, and the casing of this arbor mount pad and multistage fan ventilation blower is fixed, and the lead-out wire of stator winding is drawn by the external-rotor motor crankshaft bore; The shell of this motor is installed in the arbor of this motor through bearing, rotor core is enclosed within the shell that is fixed on motor outside the stator core for annular, circle distribution groove has a naked sliver in the rotor core in each groove, and the two ends of naked sliver are linked together by two end ring; Multistage fan is installed in motor casing and is fixed together with motor casing.
Above-mentioned smoke exhaust is characterized in that: the import at the multistage fan axial fan has radome fairing, in outlet diffusion barrel is arranged.
Above-mentioned smoke exhaust, it is characterized in that: the casing of said multistage fan axial fan is involuted by two lobes, casing is the fixing mounting pipe that matches of cylindrical and exhaust duct outward, the entry guide vane grid are one with axle mount pad and radome fairing, and exit guide blade grid and another mount pad and diffusion barrel are one.The leaf grating of both sides plays the effect of bearing simultaneously.
Above-mentioned smoke exhaust is characterized in that: said exhaust fume collecting hood side direction is a dihedral, is made up of overhead guard and side cover, the overhead guard of exhaust fume collecting hood is connected with the hinge joint of side cover, movable pole is arranged between overhead guard and the side cover, and the upper end of pole is connected with the overhead guard hinge joint, and the lower end of pole withstands in the draw-in groove of side cover.At the side cover touch-pressure switch is installed, during use during overhead guard jack-up, overhead guard does not contact with touch-pressure switch, the work of circuit turn-on ventilation blower, and the time spent is not put down overhead guard, when overhead guard and side cover stack, overhead guard is pressed in the press button of touch-pressure switch, and circuit disconnects ventilation blower and quits work, and also can adopt the opposite touch-pressure switch of the course of work, touch-pressure switch is installed in position, and the press button that overhead guard is pushed down touch-pressure switch makes the work of circuit turn-on ventilation blower.
Because the utility model is taked said structure, oil smoke is directly discharged without fan and motor in the pump drainage process, avoid oil smoke pickup fan leaf, reduced the cleaning of smoke exhaust, it is also convenient to clean, because of the fan blade of fan is not exerted a gradual, corrupting influence on by the high temperature oil flue gas, can adopt the engineering plastics compression molding, can reduce manufacturing cost; Motor is worked in home not in the high temperature oil flue gas, has kept the preferable working environment of motor, and exhaust fume collecting hood of the present utility model is simple in structure, and the more unobstructed windage of wind path is less, has improved smoke pumping efficient.As adopt deep bead can be exempted from bumpy flow, and reduce energy loss, improve the efficient of ventilation blower, as it is higher to add the efficient of entry guide vane grid, exit guide blade grid and radome fairing and diffusion barrel ventilation blower.
Detailed structure of the present utility model is provided by embodiment and accompanying drawing thereof.
Fig. 1 is the front view of the utility model embodiment one.1, centrifugal fan 2, motor 3, smoke extracting tube 4, connection base 5, exhaust fume collecting hood installing plate 6, exhaust fume collecting hood
Fig. 2 is the right view of the utility model embodiment one, the connecting portion partly cut-away at smoke exhaust pipe afterbody and smoke extracting tube two ends among the figure.7, gas outlet 8, air jet pipe 9, air inlet 10, adpting flange 11, deep bead 12, smoke extracting tube connector 13, connection base 14, smoke exhaust pipe installing plate 15, smoke exhaust pipe 16, smoke extracting tube connector
Fig. 3 is the left-hand side view of the utility model embodiment two, the link partly cut-away of the afterbody of smoke exhaust pipe and smoke extracting tube and smoke exhaust pipe among the figure.17, pin 18, overhead guard 19, touch-pressure switch 20, pole 21, side cover
Fig. 4 is the dextrad side view of the utility model embodiment three, and the casing of the afterbody of smoke exhaust pipe and multistage fan axial fan is cut open among the figure.
Fig. 5 is the motor mounting figure of embodiment three.22, force 3 wind fan axial fan 23, motor 24, mount pad 25, casing 26, fan 27, leaf grating
Fig. 6 is the dextrad side view of the utility model embodiment four, the afterbody partly cut-away of smoke exhaust pipe among the figure.28, force 3 wind fan 29, force 3 wind fan axial fan 30, axle mount pad 31, arbor 31, diffusion barrel 32, external-rotor motor 32, radome fairing 33, lead-out wire 34, electronic mantle
Fig. 7 is that the outward rotation type motor reel of embodiment four is to cutaway view.35, bearing 36, end ring 37, shell 38, rotor core 39, stator core 40, wire casing 41, stator winding 42, trip bolt 43, casing cover 44, groove 45, naked sliver 46, hole
Fig. 8 is that side view is looked on the right side of the utility model embodiment five, and the casing of the afterbody of smoke exhaust pipe and multistage fan axial fan is cut open among the figure.
Fig. 9 is a lobe front view of the multistage fan axial fan casing of embodiment five.47, exit guide blade grid 48, mounting pipe 49, axle mount pad 50, diffusion barrel 51, radome fairing 52, entry guide vane grid 53, force 3 wind fan axial fan 54, casing
Figure 10 is the right view of embodiment six of the present utility model.
Embodiment of the present utility model sees Fig. 1, Fig. 2, it comprises down funnel shaped exhaust fume collecting hood 6, smoke exhaust pipe 15, centrifugal fan 1, it is characterized in that: also have smoke extracting tube 3, one end of smoke extracting tube 3 by smoke extracting tube connector 16 be connected base 4 and be connected logically with exhaust fume collecting hood 6, the other end connects base 13 by the side of smoke exhaust pipe 15 afterbodys and is connected with smoke exhaust pipe 15 with smoke extracting tube connector 12 and leads to; Centrifugal fan 1 is installed in the afterbody of smoke exhaust pipe 15 from the back of smoke exhaust pipe 15 by adpting flange 10, the afterbody of smoke exhaust pipe 15 is also installed a tapered air jet pipe 8, deep bead 11 is installed in the smoke exhaust pipe 15 outside air jet pipe 8, the nozzle exit area of air jet pipe 8 is corresponding with the connection base 13 of smoke exhaust pipe 15, the nozzle diameter of air jet pipe 8 is 1/2 of a smoke exhaust pipe 15, and the air inlet of air jet pipe 8 communicates with the gas outlet 7 of centrifugal fan 1.At exhaust fume collecting hood 6 exhaust fume collecting hood installing plate 5 is arranged, at the fixing smoke exhaust pipe installing plate 14 of smoke exhaust pipe 15.
Embodiment two of the present utility model sees Fig. 3, the difference of it and embodiment one is that the side direction of said exhaust fume collecting hood 6 is a dihedral, form by overhead guard 18 and side cover 21, the overhead guard 18 of exhaust fume collecting hood is connected by pin 17 hinge joints with side cover 21, movable pole 20 is arranged between overhead guard 18 and the side cover 21, the upper end of pole 20 is connected with overhead guard 18 hinge joints, and the lower end of pole 20 withstands in the draw-in groove of side cover 21 during use.At side cover 21 touch-pressure switch 19 is installed, during use during overhead guard 18 jack-up, overhead guard 18 does not contact with the press button of touch-pressure switch 19, circuit turn-on motor 2 makes centrifugal fan 1 work, time spent overhead guard 18 does not put down with side cover 21 and stacks, overhead guard 18 is pressed in the press button of touch-pressure switch 19, and circuit disconnects centrifugal fan 1 and quits work.The nozzle diameter of air jet pipe 8 is 1/3 of a smoke exhaust pipe 15.
Embodiment three of the present utility model sees Fig. 4, Fig. 5, the difference of it and embodiment one be said ventilation blower be force 3 wind fan axial fan 22, the tapered casing 25 inside circumference distribution outer ends of force 3 wind fan axial fan 22 are fixed on the fixed blade of casing 25 and form four groups of leaf gratings 27, one all fixed blades are formed one group of leaf grating, wherein two groups of leaf gratings 27 are arranged between the fan of force 3 wind fan 26, and fixed blade between the force 3 wind fan 26 and force 3 wind fan axial fan axioversion are installed.The nozzle diameter of air jet pipe 8 is 1/4 of a smoke exhaust pipe 15.
The force 3 wind fan 26 of present embodiment is installed on the arbor of motor 23, and motor 23 is installed in the smoke exhaust pipe 15 by mount pad 24; Wherein one group of leaf grating is located at the inlet side of force 3 wind fan 26 as the entry guide vane grid, and wherein one group of leaf grating is located at the air side of force 3 wind fan 26 as the exit guide blade grid, in the rear end of motor 23 radome fairing is arranged, and at the port of export of force 3 wind fan 26 diffusion barrel is arranged; Air jet pipe 8 is an one as a part and the casing 25 with casing 25; Present embodiment only is provided with the entry guide vane grid or only after force 3 wind fan 26 the outlet nozzle ring is set according to the power of ventilation blower before force 3 wind fan 26.The nozzle diameter of air jet pipe 8 is 1/5 of a smoke exhaust pipe 15.
Embodiment four of the present utility model sees Fig. 6, the difference of it and embodiment one be said ventilation blower be force 3 wind fan axial fan 29, the afterbody of smoke exhaust pipe 15 is as the casing of force 3 wind fan axial fan 29, the afterbody inside circumference distribution outer end of smoke exhaust pipe 15 is fixed on the fixed blade of smoke exhaust pipe 15 and forms four groups of leaf gratings 27, one all fixed blades are formed one group of leaf grating, wherein two groups of leaf gratings 27 are arranged between the fan of force 3 wind fan 28, other one group of leaf grating is located at the inlet side of force 3 wind fan 28 as the entry guide vane grid, another group is located at air side, the fixed blade between the force 3 wind fan 28 and the installation of force 3 wind fan axial fan axioversion of force 3 wind fan 28 as the exit guide blade grid.The fan blade and the electronic mantle 34 of the force 3 wind fan 28 of present embodiment are installed on the shell of external-rotor motor 32 for one, electronic mantle 34 is enclosed within on the shell of outward rotation type motor 32, external-rotor motor 32 is installed in the smoke exhaust pipe 15 fixing with smoke exhaust pipe 15 through two axle mount pads 30 by arbor 31, in air intake, the air side of force 3 wind fan 28 radome fairing 32, diffusion barrel 31 are arranged respectively.The nozzle diameter of air jet pipe 8 is 1/3 of a smoke exhaust pipe 15.
The structure of the external-rotor motor 32 of present embodiment is seen Fig. 7, the stator core 39 of external-rotor motor 32 is cylindrical, at the cylindrical of stator core 39 wire casing 40 that evenly distributes, the lead of stator winding 41 embeds in wire casing 40, stator core 39 is fixed on external-rotor motor 32 arbors 31, and the lead-out wire 33 of stator winding 41 is drawn by the hole 46 of external-rotor motor arbor 31; The shell 37 of this motor is installed in the arbor 31 of this motor through two bearings 35, rotor core 38 is enclosed within the shell 37 that is fixed on motor outside the stator core 39 for annular, circle distribution groove 44 in the rotor core 38, one naked sliver 45 is arranged in each groove, and the two ends of naked sliver 45 are linked together by two end ring 36.The motor available motor shell 37 of this structure replaces electronic mantle 34, and force 3 wind fan 28 directly is fixed on shell 37.
Embodiment five of the present utility model sees Fig. 8, the difference of present embodiment and embodiment one is that the force 3 wind fan axial fan 53 that adopts external-rotor motor 32 is installed, the tapered casing 54 inside circumference distribution outer ends of force 3 wind fan axial fan 53 are fixed on the fixed blade of casing 54 and form four groups of leaf gratings, one all fixed blades are formed one group of leaf grating, wherein two groups of leaf gratings 27 are arranged between the fan of force 3 wind fan 28, fixed blade between the force 3 wind fan 28 and force 3 wind fan axial fan axioversion are installed, other one group is the entry guide vane grid 52 that force 3 wind is fanned 28 inlet sides, and also having one group is the exit guide blade grid 47 that force 3 wind is fanned 28 outlet sides.The fan blade and the electronic mantle 34 of the force 3 wind fan 28 of present embodiment are installed on the shell 37 of external-rotor motor 32 for one, electronic mantle 34 is enclosed within on the shell 37 of outward rotation type motor 32, external-rotor motor 32 is installed in the casing 54 through two axle mount pads such as axle mount pad 49 by arbor 31, at air intake, the air side arbor of force 3 wind fan 28 radome fairing 51, diffusion barrel 50 is arranged respectively.The nozzle diameter of air jet pipe 8 is 1/3 of a smoke exhaust pipe 15.
The casing 54 of present embodiment is involuted by two lobes, the structure of every lobe is seen Fig. 9, the relative Fig. 8 of this figure amplifies, the mounting pipe 48 that casing 54 outer fixedly cylindricals and exhaust duct 15 match, air jet pipe 8 is an one as a part and the casing 54 of casing 54, deep bead 11 is an one with casing 54, and entry guide vane grid 52 are one with arbor mount pad and radome fairing 51, and exit guide blade grid 47 are one with another arbor mount pad 49 and diffusion barrel 50.The nozzle ring of both sides plays the effect of supporting arbor simultaneously.The casing 54 of present embodiment is pressed into for plastics.
The utility model embodiment six sees Figure 10, and the difference of it and embodiment two is to adopt force 3 wind fan axial fan 53.The nozzle diameter of air jet pipe 8 is 1/2 of a smoke exhaust pipe 15.
The foregoing description four, five, six can only be provided with the entry guide vane grid or only after the force 3 wind fan outlet nozzle ring is set according to the power of ventilation blower, the internal diameter of smoke exhaust pipe before the force 3 wind fan.
Claims (9)
1, a kind of smoke exhaust, it comprises exhaust fume collecting hood, smoke exhaust pipe, ventilation blower, it is characterized in that: also have smoke extracting tube, an end of smoke extracting tube is connected logical with exhaust fume collecting hood, and the other end is connected logical by the side connection base of smoke exhaust pipe afterbody with smoke exhaust pipe; Ventilation blower is installed in the afterbody of smoke exhaust pipe from the back of smoke exhaust pipe, the afterbody of smoke exhaust pipe is also installed a tapered air jet pipe, the nozzle exit area of air jet pipe is corresponding with the connection base of smoke exhaust pipe, the nozzle diameter of air jet pipe is not more than 1/2 of smoke exhaust pipe, and the air inlet of air jet pipe communicates with the gas outlet of ventilation blower.
2, smoke exhaust according to claim 1, it is characterized in that: said ventilation blower be the multistage fan axial fan, multistage fan axial fan casing inside circumference distribution outer end is fixed on the fixed blade of casing and forms some groups of leaf gratings, one all fixed blades are formed one group of leaf grating, leaf grating is arranged between the fan of multistage fan, and fixed blade between the multistage fan and multistage fan axial fan axioversion are installed.
3, smoke exhaust according to claim 2, it is characterized in that: the motor of said multistage fan axial fan is an external-rotor motor, the stator core of external-rotor motor is cylindrical, at the cylindrical of the stator core wire casing that evenly distributes, the lead of stator winding embeds in wire casing, stator core is fixed on the external-rotor motor arbor, this arbor is fixed by the casing of axle mount pad and multistage fan ventilation blower, and the lead-out wire of stator winding is drawn by the external-rotor motor crankshaft bore; The shell of this motor is installed in the arbor of this motor through bearing, rotor core is enclosed within the shell that is fixed on motor outside the stator core for annular, circle distribution groove has a naked sliver in the rotor core in each groove, and the two ends of naked sliver are linked together by two end ring; Multistage fan is installed in motor casing and is fixed together with motor casing.
4, according to claim 1 or 2 or 3 described smoke exhausts, it is characterized in that: said air jet pipe be provided with deep bead outward, the profile of deep bead and the inboard of smoke exhaust pipe match.
5, smoke exhaust according to claim 4 is characterized in that; There are the entry guide vane grid multistage fan inlet side at the multistage fan axial fan, and the exit guide blade grid are arranged in the air side.
6, smoke exhaust according to claim 5 is characterized in that; Import at the multistage fan axial fan has radome fairing, in outlet diffusion barrel is arranged.
7, smoke exhaust according to claim 6, it is characterized in that: the casing of said multistage fan axial fan is involuted by two lobes, casing is the fixing mounting pipe that matches of cylindrical and exhaust duct outward, entry guide vane grid and arbor mount pad and radome fairing are one, and exit guide blade grid and another arbor mount pad and diffusion barrel are one.
8, according to claim 1 or 2 or 3 described smoke exhausts, it is characterized in that: said exhaust fume collecting hood side direction is a dihedral, form by overhead guard and side cover, the overhead guard of exhaust fume collecting hood is connected with the hinge joint of side cover, movable pole is arranged between overhead guard and the side cover, the upper end of pole is connected with the overhead guard hinge joint, and the lower end of pole withstands in the draw-in groove of side cover.
9, smoke exhaust according to claim 8 is characterized in that: the touch-pressure switch of being controlled by overhead guard is installed at the side cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98244783 CN2349477Y (en) | 1998-10-09 | 1998-10-09 | Cooking fume exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98244783 CN2349477Y (en) | 1998-10-09 | 1998-10-09 | Cooking fume exhauster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2349477Y true CN2349477Y (en) | 1999-11-17 |
Family
ID=33990778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98244783 Expired - Fee Related CN2349477Y (en) | 1998-10-09 | 1998-10-09 | Cooking fume exhauster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2349477Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080842A (en) * | 2009-11-30 | 2011-06-01 | 博西华电器（江苏）有限公司 | Cooking fume exhauster |
| CN107726396A (en) * | 2017-10-27 | 2018-02-23 | 杭州老板电器股份有限公司 | A kind of range hood of rectifying noise-reduction |
| CN108592105A (en) * | 2018-03-27 | 2018-09-28 | 巢湖市聚源机械有限公司 | A kind of environment-protecting kitchen ventilator convenient for cleaning |
-
1998
- 1998-10-09 CN CN 98244783 patent/CN2349477Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080842A (en) * | 2009-11-30 | 2011-06-01 | 博西华电器（江苏）有限公司 | Cooking fume exhauster |
| CN107726396A (en) * | 2017-10-27 | 2018-02-23 | 杭州老板电器股份有限公司 | A kind of range hood of rectifying noise-reduction |
| CN108592105A (en) * | 2018-03-27 | 2018-09-28 | 巢湖市聚源机械有限公司 | A kind of environment-protecting kitchen ventilator convenient for cleaning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |