CN1059361C

CN1059361C - Atomizer

Info

Publication number: CN1059361C
Application number: CN94101057A
Authority: CN
Inventors: 埃尔赫南·塔沃尔
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-09
Filing date: 1994-02-04
Publication date: 2000-12-13
Anticipated expiration: 2014-02-04
Also published as: AU684728B2; PL302182A1; ATE166800T1; HUT71758A; JP3498988B2; AU5497894A; JPH06238211A; KR940019358A; ES2119916T3; EP0610853B1; HU9400367D0; DE69410652T2; DE69410652D1; CN1094660A; BR9400460A; KR100319431B1; EP0610853A1

Abstract

The atomizer comprises a liquid inlet, an air inlet for introducing a pressurized gas stream, a liquid flow channel extending from the liquid inlet to a liquid outlet, and a curved gas flow channel extending from the air inlet to a location adjacent the liquid outlet and comprising an ultrasonic flow region adjacent the liquid outlet, whereby the ultrasonic gas stream adjacent the liquid outlet generates a shock wave which impinges on the liquid flowing out through the liquid outlet to atomize the liquid stream.

Description

Atomizer

The present invention relates to a kind of atomizer.

Various atomizers have been well known in the art.Following United States Patent (USP) is believed to represent the feature of related art: 3,908,903; 3,980,233; 4,335,677; 4,341,530; 4,406,404; 4,595,143; 4,773,596; 4,834,343; 4,943,704; 4,946,101; 5,044,559; 5,059,357; 5,181,661.

United States Patent (USP) 4,341,530 have disclosed a kind of slurry atomizer, wherein produce the spiral vapor stream of a pressurization around longitudinal axis, define a liquid path along this axis, the collision of spiral vapor stream a fluid stream attracts the liquid by this path on liquid path, and causes that axial liquid stream is dispersed into the spittle.

The objective of the invention is to attempt to provide a kind of improved atomizer.

The embodiment that recommends according to the present invention provides a kind of atomizer for this reason, this atomizer comprises a liquid inlet, an air inlet that is used to introduce forced air, one flow path of the liquid, this path extends to the liquid exit wound of bullet from the liquid inlet, an and shaped form gas channel, this passage extends near the position of liquid exit wound of bullet and comprises a hypersonic flow zone near the liquid exit wound of bullet from air inlet, hypersonic air flow near the liquid exit wound of bullet produces a shock wave whereby, and this shock wave collides and makes the atomizing of liquid stream on the liquid that flows out by the liquid exit wound of bullet.

The embodiment that recommends according to the present invention, the shaped form gas channel comprises that one is roughly spiral passage.

Be roughly spiral passage and preferably extend, and this fluid course is preferably axial around fluid course.

The embodiment that recommends according to the present invention is roughly spiral flow channel and comprises a Frusto-conical infrasound stream zone, and this infrasound stream is regional in the upstream in hypersonic flow zone, and near the hypersonic flow zone.

The embodiment that recommends according to the present invention also provides a kind of method that is used to atomize, this method may further comprise the steps, that is: forced air is delivered to air inlet and pass the shaped form gas passage, a fluid course is set, this fluid course extends to the liquid exit wound of bullet from the liquid inlet, and make forced air bear hypersonic flow in hypersonic flow location near the liquid exit wound of bullet, thus producing a shock wave, this shock wave collides and makes the atomizing of liquid stream on the liquid that flows out by the liquid exit wound of bullet.

The embodiment that recommends according to the present invention, gas passes through along being generally spiral flow channel.

Usually spiral flow channel is preferably extended around liquid flow path, and liquid flow path is preferably axial.

The embodiment that recommends according to the present invention, gas is by a Frusto-conical infrasound stream zone, and this infrasonic wave zone is in hypersonic flow upstream, zone and near the hypersonic flow zone.

The embodiment that recommends according to the present invention produces flowing of liquid stream by the suction owing to gas flow.

From understanding, wherein below in conjunction with having more fully the present invention the detailed description of the following drawings:

Fig. 1 is the view according to the sprayer device of preferred embodiment of the present invention formation and work;

Fig. 2 is the cutaway view along II-II line among Fig. 1;

Fig. 3 is the parts view sub-anatomy of Fig. 2 device;

Fig. 4 is the zoomed-in view of Fig. 2 and Fig. 3 device feature;

Fig. 5 is the view of the further amplification of Fig. 2 and Fig. 3 device feature.

Referring now to Fig. 1-5,, they have been described, and a preferred embodiment according to the present invention constitutes and the sprayer unit of work.Sprayer unit of the present invention preferably includes a shell 10, and this shell defines a pressurized gas inlet 12 and liquid inlet 14.Pressurized gas inlet 12 preferably has screw thread, so that be screwed into a corresponding gas-pressurized tube joint assembly 16 hermetically, by this assembly gas-pressurized, for example the atmosphere under 5.5-6.5 atmospheric pressure is fed into shell 10.Can select to be provided with different imports.

Liquid inlet 14 preferably is communicated with multiple step-like axial flow chamber 18, and this axial flow chamber is communicated with pressed gas inlet 12.Multiple step-like axial flow chamber 18 comprises a threaded portion 20 in abutting connection with inlet 14, and its back is the interlude 22 that narrows down, and interlude 22 back are interludes that further narrow down 24, and this interlude is communicated with inlet 12.Interlude 24 back are taper hypomeres 26, and its back is the section 28 that further narrows down successively.After the section 28 is another tapered segment 30, is an elongated outlet section 32 after this tapered segment.

But a liquid inlet channel limiting part 34 spirals are screwed into chamber 18, and comprise that one is positioned in abutting connection with the inlet portion 38 at inlet 14 places.Parts 34 also comprise a threaded portion 40, it is the centre portions 42 that narrow down that this threaded portion 40 is screwed into thread cavity portion 20 its back, has a groove 44 that sealing ring 46 is housed on it, centre portion 42 back are the centre portions 48 that further narrow down, thereafter be one to have the spiral fluted gas passage and limit section 50, this section is communicated with gas access 12.Be slightly with the section 52 of taper after the section 50, section 52 ends at the end 54 of the taper of receiving of sharply contracting.

Referring to accompanying drawing 5, the end 54 of the taper of the receipts that sharply contract of parts 34 is positioned near conical cavity section 30 and elongated outlet plenum section 32 places especially.The joint of conical cavity section 30 and outlet plenum section 32 has defined the boundary between infrasound and ultrasonic gas flow region.

Gas passes partly and 30 and 54 quickens, and expands from " neck " portion as " mach one " wire tag Fig. 5, to produce the hypersonic flow state.

Flow through the chamber that narrows down continuously 58 in the parts 34 and flow to outlet from liquid inlet 60 liquid with screw thread, this outlet is near end 54 and elongated outlet plenum section 32, and this fluid intake 60 is screwed into a liquid inlet tube joint assembly 62.The air-flow tangential component attracts liquid to flow never forced feed place and passes chamber 58 near liquid stream.Expansion of liquids enters by the zone of chamber section 32 boundaries and forms droplet (as indicating among Fig. 5), and the scope by the described liquid stream of the tapered zone that forms around the bubble that strengthens core zone in Fig. 5 is cheer and bright to those of ordinary skill in the art.The shock wave that hypersonic flow produced by the gas between the elongated export department 32 of the end 54 of parts 34 and shell 10 clashes into liquid stream obliquely, and produces atomizing at this.Those of ordinary skills will understand that between gas and liquid stream and have a shear layer that it can be identified from Fig. 5, equally also can identify two kinds of mobile dough nut effects.

Those of ordinary skill in the art will understand that the ejection of the gas that has the grain that suspends in Fig. 1 has pinniform.

A feature of the present invention is that in fact tangential gas flow produces an efficient vacuum, engages so this vacuum is drawn into ultrasonic atomizatio with liquid.The high relatively vacuum of utilizing the present invention to realize is considered to improve effectively its nebulization efficiency, particularly because due to the high-caliber gasification.

In fact, utilize illustrated device among above description and Fig. 1-5, obtain following result:

Airflow rate: 50-60 liter/minute (1.76 cubic feet of/minute (cfm)-2.12 cubic feet/minute (cfm))

Gas access pressure: 6 crust (Bar)

Liquid flow velocity: the 5.5-6 liter/hour

Output drop size (mean value): 2-10 micron

Vacuum: 6-7 meter water column (m water WG)

Evaporation: be approximately 10% of water

Can be understood that the present invention is not limited in the special expression of above being done and the content of description by those skilled in the art.On the contrary, only limit in protection scope of the present invention by following claim.

Claims

1, a kind of atomizer comprises:

One liquid inlet;

One is used to introduce the air inlet of forced air;

One extends to the fluid course of liquid exit wound of bullet from the liquid inlet;

One shaped form gas channel, this passage extends near the position of liquid exit wound of bullet and comprises a hypersonic flow zone near the liquid exit wound of bullet from air inlet, hypersonic air flow near the liquid exit wound of bullet produces a shock wave whereby, and this shock wave collides and makes the atomizing of liquid stream on the liquid stream that flows out by the liquid exit wound of bullet.

According to the described device of claim 1, it is characterized in that 2, the shaped form gas channel comprises that one is roughly spiral passage.

3, according to the described device of claim 2, it is characterized in that, be roughly spiral passage and extend around fluid course.

4, according to the described device of above-mentioned arbitrary claim, it is characterized in that described fluid course is axial.

According to the described device of arbitrary claim of claim 2-4, it is characterized in that 5, describedly be roughly spiral flow channel and comprise Frusto-conical infrasound stream zone, this infrasound stream zone is in the upstream in hypersonic flow zone and near the hypersonic flow zone.

6, a kind of method that is used for atomizer may further comprise the steps:

Forced air is delivered to air inlet and passed the shaped form gas channel;

One fluid course that extends to liquid outlet from the liquid inlet is set; And,

Forced air bears hypersonic flow in the hypersonic flow zone near the liquid exit wound of bullet, thereby produces a shock wave, and this shock wave collides and makes the atomizing of liquid stream on the liquid stream that flows out by liquid outlet.

According to the described method of claim 6, it is characterized in that 7, described gas passes through along being generally spiral flow channel.

8, according to the described method of claim 7, it is characterized in that, describedly be generally spiral flow channel and extend, and liquid flow path is preferably axial around liquid flow path.

According to the described method in one of claim 7 and 8, it is characterized in that 9, gas is by a Frusto-conical infrasound stream zone, this infrasound stream zone is in hypersonic flow upstream, zone and near the hypersonic flow zone.

10, according to the described method of arbitrary claim of claim 6-9, it is characterized in that, produce flowing of liquid stream by suction owing to gas flow.