CN205383666U

CN205383666U - No leaf negative pressure smoke ventilator

Info

Publication number: CN205383666U
Application number: CN201620000687.3U
Authority: CN
Inventors: 王峥嵘
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-04
Filing date: 2016-01-04
Publication date: 2016-07-13
Anticipated expiration: 2026-01-04

Abstract

The utility model relates to a smoke ventilator, in particular to no leaf negative pressure smoke ventilator. It comprises high -pressure fan, atmospheric pressure amplifier, smoking mouth, petticoat pipe and outlet flue etc. And the smoking mouth is equipped with on petticoat pipe upper portion, is equipped with the atmospheric pressure amplifier on the smoking mouth, and the atmospheric pressure amplifier is equipped with high -pressure fan through the connecting pipe, and the flue is equipped with on the upper portion of atmospheric pressure amplifier, and the other end of flue is equipped with the outlet flue. The utility model discloses a through high -pressure fan exhaust high -pressure gas, further enlarge the back with high -pressure gas by the atmospheric pressure amplifier, the high -speed discharge flue that blows in of the purpose -made air outlet of rethread makes further the enlargeing of the high -pressure gas velocity of flow, causes to form very high negative pressure in the flue and discharge the oil smoke suction, and without the flabellum, the oil extraction cigarette is effectual, does not have and blocks up, and it is convenient to wash, and the noise is low. The problem of present smoke ventilator adopt fan leaf convulsions, using one, to fix time the back row cigarette not smooth, oil smoke suction efficiency descends, and the flabellum rinses the difficulty, there is the potential safety hazard in the long -pending oily deposition of circuit is solved.

Description

Pressure-negative cooker hood without leaf

Technical field

This utility model relates to a kind of smoke exhaust ventilator, particularly to a kind of without leaf pressure-negative cooker hood.

Background technology

Existing smoke exhaust ventilator on the market is all lampblack-pumped to complete by air inlet suction mostly, and these smoke exhaust ventilators are ever-changing in any case does not all depart from the structure completing smoke evacuation by fan blade.The smoke exhaust ventilator of this structure is primarily present following shortcoming: one is use certain time rear fan to pollute very seriously, and fan blade blocks and causes that smoke evacuation is smooth, and oil smoke pumping efficiency declines；Two is that in cigarette machine, space is little cannot operate when cleaning, and flabellum cleans difficulty, although some producer have developed good abluent, but can not clean the dirt of the inside well；Three is that circuit long-pending oil dust stratification is serious, there is potential safety hazard.

In order to solve the problems referred to above, someone devises the smoke exhaust ventilator without flabellum, if notification number is the patent of CN203231366U, disclose " a kind of novel smoke exhaust ventilator without leaf ", its operation principle is: " air makes its pressure increase through air compressor 1; delivering to annular airstream deflector 5 through air-supply pipeline 2 one road, another road is delivered to without flabellum ventilation head 7.Annular airstream deflector 5 cross section is that fan-shaped is U-shaped, topmost have narrow slit, high pressure draught flows out from narrow slit and makes to produce three roads " brattice " between the kitchen range top and air inlet 6, the oil smoke produced when being used by gas-cooker is enclosed in three brattices, and brattice provides upwards power to generation flue gas so that it is enter air inlet 6.Penetrating through narrow annular channel through another road pressure-air without flabellum ventilation head 7, produce bigger negative pressure, air-flow carries the oil smoke that brattice serves and together discharges from exhaust passage 8." although this patent solves the problem without flabellum, but there is also some shortcomings, one is the narrow slit on the annular airstream deflector 5 too big generation opened not brattice, and the too little Yi opened is blocked；Two is that annular airstream deflector 5 can not be too remote from the kitchen range top, affects attractive in appearance and operates；Three is that annular airstream deflector 5 is in oil smoke for a long time, easily pollutes very much, and the oil stain on surface easily drips to the kitchen range top；Although four is that pressure-air can form negative pressure in time penetrating without the narrow annular channel of flabellum ventilation head 7, this is also little with the common structure the same without fan-leaf fan, the negative pressure of formation and draft, and oil smoke easily blocks narrow annular channel.It addition, the maximum defect of this patent also resides in and uses air compressor, so not only noise is big, power consumption is many, and uses dangerous, placement location to be restricted.

Summary of the invention

The purpose of this utility model is in that, for above-mentioned the deficiencies in the prior art, there is provided a kind of by air amplifier, the air pressure of high pressure blower is amplified further after, it is blown into smokejack at a high speed again through special air outlet, making to form negative pressure in flue oil smoke suction to be discharged, mist extractor is effective, without blocking, pressure-negative cooker hood without leaf easy to clean, that noise is low.

This utility model is to realize above-mentioned purpose by the following technical solutions:

This is made up of high pressure blower, air amplifier, smoking port, petticoat pipe, flue and outlet flue without leaf pressure-negative cooker hood, it is characterized in that: petticoat pipe top is equipped with smoking port, equipped with air amplifier on smoking port, air amplifier passes through connecting tube equipped with high pressure blower, the top of air amplifier is equipped with flue, and the other end of flue is equipped with outlet flue.

Described air amplifier is made up of upper shell, lower shell, air pressure circuit and connecting tube, lower end one circle of upper shell is fabricated to outer low and inner high inclined-plane, upper end one circle of lower shell is fabricated to outer low and inner high inclined-plane, upper shell and lower shell are separately fixed on the centre bore of upper Yuan Banhexia garden plate of air pressure circuit, interval 1～5mm between inclined-plane, lower end and the inclined-plane, upper end of lower shell of upper shell, equipped with a connecting tube on the outside of air pressure circuit.

The interval air cleft formed between inclined-plane, lower end and the inclined-plane, upper end of lower shell of described upper shell can make gases at high pressure flow velocity after air cleft extrudes further amplify, along inwall and the inner chamber upwards flow at high speed of upper shell, make the negative pressure that the internal generation of lower shell is significantly high.

One or two are installed as required by described air amplifier, smoking port and flue.

Described air amplifier is arranged between upper end or flue and the outlet flue of smoking port as required.

Described petticoat pipe can be fabricated to horizontal plane or tapered plane.

The installation site of described high pressure blower is connected with the connecting tube of air amplifier by pipeline after arbitrarily placing according to need for environment.

This utility model having the beneficial effects that compared with prior art:

These gases at high pressure discharged by high pressure blower without leaf pressure-negative cooker hood, after gases at high pressure being amplified further by air amplifier, it is blown into smokejack at a high speed again through special air outlet, makes gases at high pressure flow velocity further amplify, about amplify about 10 times, cause and form significantly high negative pressure in flue by oil smoke suction discharge, without flabellum, mist extractor is effective, without blocking, easy to clean, noise is low.Solving existing smoke exhaust ventilator and adopt fan leaf convulsion, discharge fume not smooth after using certain time, oil smoke pumping efficiency declines, and flabellum cleans difficulty, and circuit long-pending oil dust stratification is serious, the problem that there is potential safety hazard.

Accompanying drawing explanation

Fig. 1 is the structural representation without leaf pressure-negative cooker hood；

Fig. 2 is the main TV structure schematic diagram of air amplifier；

Fig. 3 is the plan structure schematic diagram of air amplifier；

Fig. 4 is the left view structural representation of air amplifier；

Fig. 5 is the structural representation without leaf pressure-negative cooker hood single flue, horizontal smoke cover；

Fig. 6 is the structural representation without leaf pressure-negative cooker hood single flue, oblique petticoat pipe.

In figure: 1, high pressure blower, 2, air amplifier, 2-1, upper shell, 2-2, lower shell, 2-3, air pressure circuit, 2-4, puff prot, 2-5, connecting tube, 3, smoking port, 4, petticoat pipe, 5, flue, 6, outlet flue, 7, the kitchen range top.

Detailed description of the invention

This is made up of high pressure blower 1, air amplifier 2, smoking port 3, petticoat pipe 4, flue 5 and outlet flue 6 without leaf pressure-negative cooker hood, petticoat pipe 4 top is equipped with smoking port 3, equipped with air amplifier 2 on smoking port 3, air amplifier 2 passes through connecting tube 2-5 equipped with high pressure blower 1, the top of air amplifier 2 is equipped with flue 5, and the other end of flue 5 is equipped with outlet flue 6.Described air amplifier 2 is made up of upper shell 2-1, lower shell 2-2, air pressure circuit 2-3 and connecting tube 2-5, lower end one circle of upper shell 2-1 is fabricated to outer low and inner high inclined-plane, upper end one circle of lower shell 2-2 is fabricated to outer low and inner high inclined-plane, upper shell 2-1 and lower shell 2-2 is separately fixed on the centre bore of upper Yuan Banhexia garden plate of air pressure circuit 2-3, interval 1～5mm between inclined-plane, lower end and the inclined-plane, upper end of lower shell 2-2 of upper shell 2-1, equipped with a connecting tube 2-5 on the outside of air pressure circuit 2-3.One or two are installed as required by described air amplifier 2, smoking port 3 and flue 5.Described air amplifier 2 is arranged between upper end or flue 5 and the outlet flue 6 of smoking port 3 as required.Described petticoat pipe 4 can be fabricated to cabin cabin shape, horizontal plane shape or tapered plane shape according to the practical situation of the kitchen range top 7.The installation site of described high pressure blower 1 is connected with the connecting tube 2-5 of air amplifier 2 by pipeline after arbitrarily placing according to need for environment.This can make single stove or double; two stove structure without leaf pressure-negative cooker hood, needed for meeting various user.(referring to accompanying drawing 1～6).

This without the operation principle of leaf pressure-negative cooker hood is, gases at high pressure are sent in the air pressure circuit 2-3 of air amplifier 2 by high pressure blower 1 by connecting tube 2-5, after gases at high pressure form circulation in air pressure circuit 2-3, extruded by the air cleft of 1～5mm between the inclined-plane, lower end of the upper shell 2-1 of air amplifier and the inclined-plane, upper end of lower shell 2-2, along inwall and the inner chamber upwards flow at high speed of upper shell 2-1；Know from experience due to the high pressure gas after air cleft extrudes and produce Coanda effect, gas flow rate can further amplify, about amplify about 10 times, lower shell 2-2 and smoking port inside is made to produce significantly high negative pressure, higher more than 5 times than directly adopting the negative pressure that high pressure blower 1 is formed, form extremely strong suction draught, discharged by flue 5 and outlet flue 6 after the oil smoke on the kitchen range top 7 being aspirated finally by petticoat pipe 4.

The above is preferred embodiment of the present utility model, the example above illustrates flesh and blood of the present utility model is not done any pro forma restriction, any simple modification that above detailed description of the invention has been made according to technical spirit of the present utility model by person of an ordinary skill in the technical field after having read this specification or deformation, and the technology contents possibly also with the disclosure above is changed or is modified to the Equivalent embodiments of equivalent variations, all still fall within the scope of technical solutions of the utility model, without departing from spirit and scope of the present utility model.

Claims

1. one kind without leaf pressure-negative cooker hood, it is made up of high pressure blower (1), air amplifier (2), smoking port (3), petticoat pipe (4), flue (5) and outlet flue (6), it is characterized in that: petticoat pipe (4) top is equipped with smoking port (3), equipped with air amplifier (2) on smoking port (3), air amplifier (2) by connecting tube (2-5) equipped with high pressure blower (1), the top of air amplifier (2) is equipped with flue (5), and the other end of flue (5) is equipped with outlet flue (6).

2. according to claim 1 a kind of without leaf pressure-negative cooker hood, it is characterized in that: described air amplifier (2) is by upper shell (2-1), lower shell (2-2), air pressure circuit (2-3) and connecting tube (2-5) are constituted, lower end one circle of upper shell (2-1) is fabricated to outer low and inner high inclined-plane, upper end one circle of lower shell (2-2) is fabricated to outer low and inner high inclined-plane, upper shell (2-1) and lower shell (2-2) are separately fixed on the centre bore of upper Yuan Banhexia garden plate of air pressure circuit (2-3), interval 1～5mm between inclined-plane, lower end and the inclined-plane, upper end of lower shell (2-2) of upper shell (2-1), equipped with a connecting tube (2-5) on the outside of air pressure circuit (2-3).

3. according to claim 2 a kind of without leaf pressure-negative cooker hood, it is characterized in that: the interval air cleft formed between inclined-plane, lower end and the inclined-plane, upper end of lower shell (2-2) of described upper shell (2-1) can make gases at high pressure flow velocity after air cleft extrudes further amplify, along inwall and the inner chamber upwards flow at high speed of upper shell (2-1), make the negative pressure that the internal generation of lower shell (2-2) is significantly high.

4. according to claim 1 a kind of without leaf pressure-negative cooker hood, it is characterised in that: one or two are installed as required by described air amplifier (2), smoking port (3) and flue (5).

5. according to claim 1 a kind of without leaf pressure-negative cooker hood, it is characterised in that: described air amplifier (2) is arranged between upper end or flue (5) and the outlet flue (6) of smoking port (3) as required.

6. according to claim 1 a kind of without leaf pressure-negative cooker hood, it is characterised in that: described petticoat pipe (4) can be fabricated to horizontal plane or tapered plane.

7. according to claim 1 a kind of without leaf pressure-negative cooker hood, it is characterised in that: the installation site of described high pressure blower (1) is connected with the connecting tube (2-5) of air amplifier (2) by pipeline after arbitrarily placing according to need for environment.