Spraying apparatus having water and air intakes

Patent metadata

Field	Value
Publication number	US-9884332-B2
Application number	US-201214122521-A
Country	US
Kind code	B2
Filing date	Jun 20, 2012
Priority date	Jun 28, 2011
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

A spraying apparatus includes a convergence chamber having a large end and a small end; at least two water inlets provided in the large end of the convergence chamber, each water inlet having a central axis and the at least two water inlets being arranged at convergent angles to each other so that the central axes converge in free space within the convergence chamber; at least one air intake provided in the convergence chamber between the large end and the small end; and a rectifier opening including a throat provided at the small end of the convergence chamber; and a spraying opening, the rectifier opening having a cross-sectional area that continuously increases outwardly from the throat to the spraying opening, and the throat having a cross-sectional area that is one to three times greater than that of a total cross-sectional area of the at least two water inlets.

First claim

The invention claimed is:

1. A spraying apparatus having water and air intakes, comprising:
a convergence chamber having, along a central axis thereof, a large end and a small end, and inner walls that have a continuous transition between the large end and the small end;
at least two water inlets provided in the large end of the convergence chamber in communication therewith, each water inlet of the at least two water inlets having a central axis and the at least two water inlets being arranged at convergent angles to each other so that the central axes converge in free space within the convergence chamber towards the small end thereof;
at least one air intake provided in the convergence chamber between the large end and the small end and in communication with the convergence chamber; and
a rectifier opening including a throat provided at, and in communication with, the small end of the convergence chamber; and a spraying opening terminating the rectifier opening, the rectifier opening having a cross-sectional area that continuously increases outwardly from the throat to the spraying opening, and the throat being configured to allow water flow to form a liquid seal and having a cross-sectional area that is one to three times greater than that of a total cross-sectional area of the at least two water inlets.

2. The spraying apparatus according to claim 1 , wherein the convergence chamber, the rectifier opening, and the throat each have cross-sectional areas that have a circular shape and are rotationally symmetric with one another about the central axis of the convergence chamber.

3. The spraying apparatus according to claim 2 , wherein the convergence chamber has a frustoconical shape.

4. The spraying apparatus according to claim 3 , wherein the at least two water inlets and the convergence chamber are rotationally symmetric about the central axis of the convergence chamber.

5. The spraying apparatus according to claim 4 , wherein the rectifier opening has a frustoconical shape.

6. The spraying apparatus according to claim 5 , wherein the convergence chamber having the frustoconical shape becomes smaller from the large end to the small end thereof and the rectifier opening having the frustoconical shape becomes larger from the throat to the spraying opening thereof.

7. The spraying apparatus according to claim 6 , wherein the at least two water inlets and two air intakes are symmetrically arranged about the central axis of the convergence chamber, wherein the convergence chamber, the rectifier opening and the two air intakes are formed half-and-half respectively in a left set block and a right set block, and wherein the left set block and the right set block are in close interfacial contact with one another.

8. The spraying apparatus according to claim 7 , wherein the left set block and the right set block have respective interfacial surfaces that are coupled to each other to define a rectangle; wherein each of the at least two water inlets are provided in one set block from among the left set block and the right set block, and wherein the rectifier opening and the two air intakes are provided in another set block from among the left set block and the right set block.

9. The spraying apparatus according to claim 8 , wherein the at least two water inlets are provided in the left set block; and wherein the convergence chamber, the rectifier opening and the two air intakes have equal volume in the left set block and in the right set block.

10. A spraying apparatus having water and air intakes, comprising:
a convergence chamber having, along a central axis thereof, a large end and a small end, and inner walls that have a continuous transition between the large end and the small end;
at least two water inlets provided in the large end of the convergence chamber in communication therewith, each water inlet of the at least two water inlets having a central axis and the at least two water inlets being arranged at convergent angles to each other so that the central axes converge in free space within the convergence chamber towards the small end thereof;
two air intakes provided in the convergence chamber between the large end and the small end and in communication with the convergence chamber; and
a rectifier opening including a throat provided at, and in communication with, the small end of the convergence chamber; and a spraying opening terminating the rectifier opening, the rectifier opening having a cross-sectional area that continuously increases outwardly from the throat to the spraying opening, and the throat being configured to allow water flow to form a liquid seal and having a cross-sectional area that is one to three times greater than that of a total cross-sectional area of the at least two water inlets,
wherein the two air intakes and the at least two water inlets are symmetrically arranged about the central axis of the convergence chamber, and
wherein the convergence chamber, the rectifier opening and the two air intakes are formed half-and-half respectively in a left set block and a right set block; the left set block and the right set block being in close interfacial contact with one another.

11. The spraying apparatus according to claim 10 , wherein the left set block and the right set block have respective interfacial surfaces that are coupled to each other and share a rectangular outline, wherein the at least two water inlets are provided in one set block from among the left set block and the right set block, and wherein the rectifier opening and the two air intakes are provided in another set block from among the left set block and the right set block.

12. The spraying apparatus according to claim 11 , wherein the at least two water inlets are positioned in the left set block, and wherein the convergence chamber, the rectifier opening and the two air intakes have equal volume in the left set block and in the right set block.

Assignees

• Zhou Huasong
• Ji Yangfeng
• Cao Yongbin
• Chen Bin
• Xiamen Solex High Tech Ind Co Ltd

Inventors

• Zhou Huasong
• Ji Yangfeng
• Cao Yongbin
• Chen Bin

Classifications

• A61M11/06 Primary

  of the injector type · CPC title

• B05B7/0483 Primary

  with gas and liquid jets intersecting in the mixing chamber · CPC title

• B05B7/0425

  without any source of compressed gas, e.g. the air being sucked by the pressurised liquid · CPC title

• A61M11/002

  by flow deviation causing inertial separation of transported particles · CPC title