CN113798076A

CN113798076A - Double-fluid nozzle

Info

Publication number: CN113798076A
Application number: CN202111210678.9A
Authority: CN
Inventors: 王俊哲; 于颖翠; 栾景宏; 董大伟; 李江旭; 罗宝; 李丹丹; 骆淑芳; 赵光辉; 杨竞业
Original assignee: Qinhuangdao Capital Starlight Environmental Technology Co ltd
Current assignee: Qinhuangdao Capital Starlight Environmental Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2021-12-17
Also published as: TW202327734A

Abstract

The technical scheme adopted by the invention is as follows: a dual fluid nozzle comprising: casing, air duct, resonance head, its characterized in that still includes: an atomizing core; the outer wall of the front part of the air duct is provided with air duct threads, the two symmetrical sides of the air duct threads are provided with cut planes which are water inlet planes, and a rotational flow core is arranged inside the front end of the air duct; the rear end face of the atomization core is provided with a plurality of chutes with opposite rotation directions to the rotational flow core, and the atomization core is arranged at the front end inside the shell; the air guide pipe is in threaded connection with the inner wall of the shell through the air guide pipe threads, and the front end face of the air guide pipe is abutted against the rear end face of the atomization core; the resonance head is fixedly arranged in front of the outlet of the shell. According to the invention, the swirl core and the chute with opposite swirl directions are arranged, so that water and gas are mixed in the atomization core in opposite swirl directions, the mixing effect is more sufficient and uniform, and the atomization effect is obviously improved.

Description

Double-fluid nozzle

Technical Field

The invention relates to the field of spray heads, in particular to a double-fluid spray nozzle.

Background

At present, water mist is widely adopted for dust suppression in open type dust treatment, the probability of collision condensation and sedimentation is the largest when water mist particles are smaller than or equal to dust particles, the dust particles with particle sizes of 1-10um can be generated for PM2.5 and below dust particles to achieve the purpose of effective dust suppression, and the conventional nozzle cannot generate water mist with particle sizes of 1-10um through direct water and gas mixing and atomization, so that dust with particles of PM2.5 and next time cannot be effectively settled.

The current chinese utility model patent with patent number 200720101066.5: the utility model provides an atomizer, it is including inlet tube and air-supply line, its inlet tube and air-supply line are connected with the water supply chamber of nozzle connector and the confession tuber pipe of assembling in connector water supply chamber central point and putting respectively, are provided with radial inlet opening in the front portion of confession tuber pipe, are equipped with hollow toper nozzle in the front end of connector, correspond through the fixed oscillating head of taking the arc recess that is provided with of steel wire frame in the place ahead of nozzle and jet orifice. The technical proposal of the utility model also comprises that a nozzle protection tube is sleeved on the connecting body, a nozzle rear part protection shell is assembled at the rear end of the protection tube, a water inlet pipe and an air inlet pipe protection sleeve are connected at the rear end of the protection shell, and a heat tracing band is arranged in parallel with the water inlet pipe and the air inlet pipe. The utility model discloses utilize water, gas mixture efflux to act on the oscillating head to form the oscillatory wave at shower nozzle jet end, make the water smoke that erupts refine, reach the purpose of ideal dust fall.

Although the above patent forms certain atomization effect, the water-gas combination is not sufficient, and it is not obvious to form atomization effect, so it is urgently needed to develop a nozzle with fully combined water-gas and good atomization effect.

Disclosure of Invention

In order to solve the problems, the invention provides the two-fluid nozzle, and the two-fluid nozzle is provided with the rotational flow core and the chute which have opposite rotational directions, so that water and gas are mixed in the atomizing core in the opposite rotational directions, the mixing effect is more sufficient and uniform, and the atomizing effect is obviously improved.

The technical scheme adopted by the invention is as follows: a dual fluid nozzle comprising: casing, air duct, resonance head, its characterized in that still includes: an atomizing core; an air duct thread is arranged on the outer wall of the front part of the air duct, cutting planes are symmetrically arranged on two sides of the air duct thread, a cavity is arranged between the cutting planes and the inner wall of the shell, and the cavity is a water inlet part; a rotational flow core is arranged inside the front end of the air duct; the rear end face of the atomization core is provided with a plurality of chutes with opposite rotation directions to the rotational flow core, and the atomization core is arranged at the front end inside the shell; the air guide pipe is in threaded connection with the inner wall of the shell through the air guide pipe threads, and the front end face of the air guide pipe is abutted against the rear end face of the atomization core; the resonance head is fixedly arranged in front of the outlet of the shell.

Furthermore, the rear end of the resonance head is provided with a plurality of layers of arc-shaped stepped conical surfaces.

Furthermore, the resonance head is fixedly arranged on the shell through a supporting steel wire, and the outer wall of the shell is provided with a steel wire hole and a clamping groove; the supporting steel wire hook is installed in the steel wire hole, the steel wire of the supporting steel wire hook is clamped in the clamping groove, and an arc-shaped groove is arranged inside the resonance head and is attached to the tip of the supporting steel wire.

Further, the atomizing core is of a Laval nozzle structure.

Further, the inclined angle of the chute is 15-20 degrees.

Furthermore, the outer walls of the shell and the air duct are provided with sealing rings.

Due to the adoption of the technical scheme, the invention has the following advantages:

1. according to the invention, the swirl core and the chute with opposite rotation directions are arranged, and the airflow and the water flow are mixed and atomized in the atomizing core in a reverse rotation mode, so that stronger interaction of the water and the air is generated, the mixing effect is more sufficient and uniform, and the atomizing effect is obviously improved.

2. The atomizing core adopts a Laval nozzle structure commonly adopted by an aeroengine, so that the mixed water mist is fully accelerated to a supersonic speed state and is sprayed backwards, and sufficient kinetic energy is provided for secondary resonance atomization.

3. The resonance head adopts a plurality of circular-arc step structures, the water mist is enabled to generate interaction under the action of each circular-arc step after being impacted by the circular-arc step structures to form resonance and generate a sonic boom effect, water drops are enabled to be broken into 1-10um ultrafine mist particles to the maximum extent, and the dust suppression effect is further improved.

Drawings

Fig. 1 is a perspective view of the present invention.

FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention.

Fig. 3 is a schematic view of the housing structure.

Fig. 4 is a schematic rear view of an atomizing core.

FIG. 5 is a schematic cross-sectional view of an atomizing core

FIG. 6 is a schematic view of the airway tube.

Fig. 7 is a schematic diagram of a resonant head structure.

Fig. 8 is a schematic view of a cyclone core structure.

Fig. 9 is a schematic view of the structure of the support wire.

Fig. 10 is a schematic view of an atomizing core structure.

Reference numerals: 1-a shell; 2-gas guide tube, 3-rotational flow core, 4-gas guide tube thread, 5-cutting plane, 6-atomizing core, 7-chute, 8-resonance head, 9-supporting steel wire, 10-steel wire hole and 11-sealing ring.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Examples

As shown in fig. 1-10, a two-fluid nozzle comprising: casing 1, air duct 2, resonance head 8 still include: an atomizing core 6; the outer wall of the front part of the air duct 2 is provided with air duct threads 4, the air duct threads 4 are symmetrically provided with cutting planes 5 at two sides, a cavity is arranged between the cutting planes 5 and the inner wall of the shell 1, the cavity is a water inlet part, and a rotational flow core 3 is arranged inside the front end of the air duct 2; the rear end face of the atomizing core 6 is provided with 30 chutes 7 with opposite rotation directions to the rotational flow core 3, and the inclination angle of each chute 7 is 15 degrees; the atomizing core 6 is of a Laval nozzle structure and is arranged at the front end inside the shell 1; the air duct 2 is in threaded connection with the inner wall of the shell 1 through air duct threads 4, and the front end face of the air duct is abutted against the rear end face of the atomizing core 6; the rear end of the resonance head 8 is provided with a plurality of layers of arc-shaped step steps which are fixedly arranged in front of the outlet of the shell 1.

When the device is used, firstly, the supporting steel wire 9 penetrates through an arc-shaped groove in the resonance head 8, the resonance head 8 is punched to enable the tip end of the supporting steel wire 9 to be tightly attached to the arc-shaped groove, then the supporting steel wire 9 is installed in the steel wire hole 10 in a bent manner, and the steel wire is clamped in the clamping groove to complete the fixation of the resonance head 8; the atomization core 6 is arranged at the front end inside the shell 1, the front end face of the atomization core abuts against the inner wall of the shell 1, then the air guide pipe 2 is screwed into the shell 1, the air guide pipe thread 4 is in threaded connection with the inner wall of the shell 1, and after the front end face abuts against the rear end face of the atomization core 6, the nozzle is assembled; the nozzle is inserted into the nozzle seat, the outer walls of the shell 1 and the air duct 2 are provided with the sealing rings 11, good sealing between the shell and the nozzle seat is ensured, a water channel and an air channel valve are opened, air enters the atomizing core 6 through the rotational flow core 3 in a clockwise rotation direction, water enters the atomizing core 6 through the chute 7 in an anticlockwise rotation direction, the water and the air are collided in the atomizing core 6 at high speed in different forward and reverse rotation directions to fully mix water mist, the atomizing core 6 is of a Laval nozzle structure, the mixed water mist is further accelerated to be ejected backwards in a supersonic speed state, the water mist is collided on the resonance head 8, the water mist is enabled to generate interaction under the action of arc steps after being collided by the arc step structure to form resonance and generate a sonic boom effect, water drops are crushed into 1-10 mu m ultrafine mist particles to the maximum extent, and a better dust fall effect is achieved.

Claims

1. A dual fluid nozzle comprising: casing (1), air duct (2), resonance head (8), its characterized in that still includes: an atomizing core (6); an air guide pipe thread (4) is arranged on the outer wall of the front part of the air guide pipe (2), cutting planes (5) are symmetrically arranged on two sides of the air guide pipe thread (4), a cavity is arranged between the cutting planes (5) and the inner wall of the shell (1), and the cavity is a water inlet part; a rotational flow core (3) is arranged in the front end of the air duct (2); the rear end face of the atomization core (6) is provided with a plurality of chutes (7) with opposite rotation directions to the rotational flow core (3), and the atomization core (6) is arranged at the front end inside the shell (1); the air guide pipe (2) is in threaded connection with the inner wall of the shell (1) through the air guide pipe threads (4), and the front end face of the air guide pipe abuts against the rear end face of the atomization core (6); the resonance head (8) is fixedly arranged in front of an outlet of the shell (1).

2. A two-fluid nozzle according to claim 1, characterised in that the rear end of the resonance head (8) is provided with a plurality of layers of circular arc-shaped stepped steps.

3. A two-fluid nozzle according to claim 2, characterised in that the resonance head (8) is fixedly mounted on the housing (1) by means of a support wire (9).

4. A two-fluid nozzle according to claim 1, characterised in that the atomizing core (6) is of laval nozzle construction.

5. A two-fluid nozzle according to claim 4, characterised in that the angle of inclination of the chute (7) is 15-20 degrees.

6. A two-fluid nozzle according to claim 1, characterised in that the housing (1), the outer wall of the gas duct (2) are provided with sealing rings (11).