VENTURI EJECTOR FOR A CHEMICAL DISPENSER

• US 20140102543A1
• Filed: 10/12/2012
• Published: 04/17/2014
• Est. Priority Date: 10/12/2012
• Status: Active Grant

• Current Assignee: Sunburst Chemicals
• Original Assignee: Sunburst Chemicals
• Inventors: Grant, Robert
• Granted Patent: US 9,399,198 B2
• Time in Patent Office: Days
• US Class Current: 137/3
• CPC Class Codes: B01F 21/00 Dissolving separating by dissolving B01D; dissolving to effect cooling F25D5/00
• CPC Class Codes: B01F 21/22 using additional holders in conduits, containers or pools for keeping the solid material in place, e.g. supports or receptacles
• CPC Class Codes: B01F 25/31243 Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
• CPC Class Codes: B01F 35/75441 Venturi pumps
• CPC Class Codes: F04F 5/20 for evacuating
• CPC Class Codes: Y10T 137/0329 Mixing of plural fluids of diverse characteristics or conditions
• CPC Class Codes: Y10T 137/2599 Venturi

Abstract

A venturi ejector for forcibly ejecting a slurry or solution generated in a fluid dispenser, wherein the venturi ejector includes a venturi, the venturi being in a first flow communication with the slurry or solution and developing a vacuum, the vacuum being in a second flow communication with atmospheric pressure, the second flow communication acting to cause the atmospheric pressure to exert a pressure on the slurry or solution, thereby forcing the slurry to the venturi where the slurry or solution is forcibly ejected from the venturi. A method for forcibly ejecting a slurry or solution generated in a fluid dispenser is further included.

Claims

1. A venturi ejector for forcibly ejecting a slurry or solution generated in a fluid dispenser, the venturi ejector comprising:

a venturi, the venturi being in a first flow communication with the slurry or solution and developing a vacuum, the vacuum being in a second flow communication with atmospheric pressure, the second flow communication acting to cause the atmospheric pressure to exert a pressure on the slurry or solution, thereby forcing the slurry or solution to the venturi where the slurry or solution is forcibly ejected from the venturi.

2. The venturi ejector of claim 1 wherein the vacuum is formed as a result of a column of flowing fluid passing through the venturi.

3. The venturi ejector of claim 2 including a restrictor and an ejector, the restrictor and the ejector being spaced apart to in part define an inductor.

4. The venturi ejector of claim 3 wherein the inductor is in flow communication with the slurry or solution.

5. The venturi ejector of claim 4 wherein the restrictor has a restrictor flow passageway, the flow passageway being in flow communication with a fluid flow, the restrictor acting to accelerate the velocity of the fluid flow as the fluid flow passes through the flow passageway.

6. The venturi ejector of claim 5 wherein the fluid flow is at least 1.5 gallons per minute.

7. The venturi ejector of claim 5 wherein the fluid flow is preferably about 5.5 gallons per minute.

8. The venturi ejector of claim 5 wherein the ejector has an ejector flow passageway defined therethrough, the ejector flow passageway being in flow communication with the restrictor flow passageway for receiving a columnar, accelerated fluid flow therefrom.

9. The venturi ejector of claim 8 wherein the ejector flow passageway has a diameter that is greater than a diameter of the restrictor flow passageway.

10. The venturi ejector of claim 9 wherein an annular space is defined between an outer margin of the columnar, accelerated fluid flow and a margin of the ejector flow passageway.

11. The venturi ejector of claim 10 wherein a vacuum is developed in the annular space as a result of the passage of the columnar, accelerated fluid flow through the ejector flow passageway.

12. The venturi ejector of claim 11 wherein the annular space is in flow communication with an inductor, the inductor being defined between the restrictor and the ejector, the inductor further being in flow communication with the slurry, the vacuum acting on the slurry for mixing the slurry with the columnar, accelerated fluid flow in the ejector flow passageway and for ejecting the mixed slurry/columnar, accelerated fluid flow from the venturi.

13. In a venturi ejector, a method for forcibly ejecting a slurry or solution generated in a fluid dispenser, the venturi ejector comprising:

forming a venturi, placing the venturi in a first flow communication with the slurry or solution and developing a vacuum;

placing the vacuum in a second flow communication with atmospheric pressure, causing the second flow communication to cause the atmospheric pressure to exert a pressure on the slurry or solution, and;

thereby forcing the slurry or solution to the venturi where the slurry or solution is forcibly ejected from the venturi.

14. The method of claim 13 including forming the vacuum as a result of a column of flowing fluid passing through the venturi.

15. The method of claim 14 including forming a restrictor and an ejector and spacing the restrictor and the ejector apart to in part define an inductor.

16. The method of claim 15 including placing the inductor in flow communication with the slurry or solution.

17. The method of claim 16 including forming a restrictor flow passageway in the restrictor, placing the flow passageway in flow communication with a fluid flow, and causing the restrictor to accelerate the velocity of the fluid flow as the fluid flow passes through the flow passageway.

18. The method of claim 17 including causing the fluid flow to be at least 1.5 gallons per minute.

19. The method of claim 18 including causing the fluid flow to be preferably about 5.5 gallons per minute.

20. The method of claim 13 including defining an annular space between an outer margin of a columnar, accelerated fluid flow and a margin of an ejector flow passageway, causing the passage of the columnar, accelerated fluid flow through the ejector flow passageway, and thereby developing a vacuum in the annular space.